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.
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 Model
Year Range
Gear 1
Gear 2
Gear 3
Gear 4
Gear 5
Gear 6
Notes
Sportster 883/1200
2004–Present
2.37
1.66
1.25
1.00
0.84
N/A
5-speed gearbox
Softail Models
2000–2017
2.52
1.81
1.33
1.00
0.85
N/A
5-speed Twin Cam
Softail (M8 Engines)
2018–2024
2.54
1.80
1.34
1.00
0.81
0.79
6-speed Milwaukee-Eight
Dyna Models
2000–2017
2.52
1.81
1.33
1.00
0.85
N/A
5-speed gearbox
Touring Models
2000–2024
2.43
1.66
1.25
1.00
0.84
0.75
6-speed gearbox
V-Rod
2002–2017
2.58
1.83
1.32
1.00
0.87
0.79
6-speed gearbox
Street 500/750
2015–2020
2.67
1.80
1.33
1.00
0.85
N/A
5-speed gearbox
Pan America 1250
2021–Present
2.54
1.80
1.34
1.00
0.81
0.79
6-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.
Tonmoy is a recognized author and editor known for his deep passion and expertise in the world of motorcycles. His work goes beyond the mechanics and aesthetics, capturing the vibrant culture of motorcycle clubs and the strong sense of brotherhood shared by riders. Tonmoy’s special enthusiasm for motorcycle clubs adds depth to his writing, making his contributions to the motorcycle community both insightful and impactful
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https://www.twowheller.com/gear-ratio-chart/feed/0Harley 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/#respondFri, 24 Jul 2026 17:44:02 +0000https://www.twowheller.com/?p=1238Handlebars 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 Model
Year Range
Handlebar Type
Diameter
Rise / Pullback
Notes
Sportster 883/1200
1986–2003
Stock/Drag
1″
6″ rise / 6″ pullback
Narrow profile, compatible with standard controls
Sportster 883/1200
2004–Present
Ape Hanger
1″
12″ rise / 6″ pullback
Popular for classic customization
Softail Models
1984–2017
Stock/Buckhorn
1″
8–10″ rise / 4–6″ pullback
OEM options for touring and cruiser style
Softail (M8 Engines)
2018–2024
Drag / Ape
1″
6–12″ rise / 6″ pullback
Compatible with Milwaukee-Eight controls
Dyna Models
1991–2017
Stock / Ape
1″
8–12″ rise / 6″ pullback
Easy upgrade for custom look
Touring Models
1980–2024
Pullback / Buckhorn
1-1/4″
8–10″ rise / 6″ pullback
Supports heavy touring controls
V-Rod
2002–2017
Drag
1″
4–6″ rise / 4–6″ pullback
Low sporty design
Street 500/750
2015–2020
Stock / Mini Ape
7/8″
4–6″ rise / 4″ pullback
Lightweight urban handlebars
Pan America 1250
2021–Present
Adventure / Pullback
1-1/4″
6–8″ rise / 6″ pullback
Designed 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.
Tonmoy is a recognized author and editor known for his deep passion and expertise in the world of motorcycles. His work goes beyond the mechanics and aesthetics, capturing the vibrant culture of motorcycle clubs and the strong sense of brotherhood shared by riders. Tonmoy’s special enthusiasm for motorcycle clubs adds depth to his writing, making his contributions to the motorcycle community both insightful and impactful
]]>https://www.twowheller.com/harley-davidson-handlebars-size-chart/feed/0Harley 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/#respondFri, 24 Jul 2026 16:37:58 +0000https://www.twowheller.com/?p=1229When 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 Model
Year Range
Drive Type
Belt/Chain Width
Maintenance Interval
Notes
Sportster 883/1200
1986–2003
Chain
520 Series
500–1000 miles
Early Sportsters used chain; requires lubrication
Sportster 883/1200
2004–Present
Belt
1″ (25mm)
12,000–15,000 mi
Modern Sportsters use belt drives
Softail Models
1984–Present
Belt
1–1/2″ / 20–24mm
12,000–15,000 mi
All Softails come stock with belts
Dyna Models
1991–2017
Belt
1–1/8″ / 20mm
12,000–15,000 mi
Smooth, low-maintenance belts
Touring Models
1980–Present
Belt
1–1/2″ / 24mm
12,000–15,000 mi
High torque touring models
V-Rod
2002–2017
Belt
1–3/8″ / 35mm
12,000–15,000 mi
Designed for power delivery
Street 500/750
2015–Present
Belt
1″ / 25mm
12,000 mi
Lightweight urban bikes
Pan America 1250
2021–Present
Belt
1″ / 25mm
12,000 mi
Adventure-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
Feature
Belt Drive
Chain Drive
Noise Level
Quiet
Louder
Maintenance
Low (occasional tension check)
High (lubrication + adjustment)
Longevity
Long-lasting (~12–15k mi)
Moderate (~5–10k mi)
Cost of Replacement
Higher upfront
Lower upfront
Power Transfer
Smooth, consistent
Slightly more aggressive
Weather Resistance
Excellent, less rust-prone
Susceptible 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:
Inspect tension and alignment regularly.
Check for cracks or fraying.
Clean lightly; avoid harsh solvents.
Chain Drive:
Lubricate every 300–500 miles.
Adjust tension per manufacturer specs.
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.
Tonmoy is a recognized author and editor known for his deep passion and expertise in the world of motorcycles. His work goes beyond the mechanics and aesthetics, capturing the vibrant culture of motorcycle clubs and the strong sense of brotherhood shared by riders. Tonmoy’s special enthusiasm for motorcycle clubs adds depth to his writing, making his contributions to the motorcycle community both insightful and impactful
]]>https://www.twowheller.com/harley-davidson-chain-vs-belt-drive-chart/feed/0Harley Davidson Seat Fitment Chart [Model Compatibility]
https://www.twowheller.com/harley-davidson-seat-fitment-chart/
https://www.twowheller.com/harley-davidson-seat-fitment-chart/#respondFri, 24 Jul 2026 15:46:46 +0000https://www.twowheller.com/?p=1235A 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 Model
Year Range
Seat Type
Notes
Sportster 883/1200
1986–2003
Solo/Stock
Narrow profile, stock and aftermarket options available
Sportster 883/1200
2004–Present
Solo/Two-Up
Modern Sportsters offer comfortable two-up seats
Softail Models
1984–2017
Solo/Two-Up
Classic Softail seats with wide options for comfort
Softail (M8 Engines)
2018–2024
Solo/Two-Up
Milwaukee-Eight compatible; aftermarket seats widely available
Dyna Models
1991–2017
Solo/Two-Up
Customizable with touring or passenger seats
Touring Models
1980–2024
Solo/Two-Up
Includes Road King, Street Glide, Electra Glide; large comfortable touring seats
V-Rod
2002–2017
Solo/Two-Up
Sporty low-profile seats, some models only compatible with OEM or custom seats
Street 500/750
2015–2020
Solo
Narrow and compact for urban riding
Pan America 1250
2021–Present
Solo/Two-Up
Adventure 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.
Tonmoy is a recognized author and editor known for his deep passion and expertise in the world of motorcycles. His work goes beyond the mechanics and aesthetics, capturing the vibrant culture of motorcycle clubs and the strong sense of brotherhood shared by riders. Tonmoy’s special enthusiasm for motorcycle clubs adds depth to his writing, making his contributions to the motorcycle community both insightful and impactful
]]>https://www.twowheller.com/harley-davidson-seat-fitment-chart/feed/0Harley 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/#respondFri, 24 Jul 2026 14:53:05 +0000https://www.twowheller.com/?p=1216Maintaining 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.
By following the correct torque specs, you keep your Harley running smoothly and securely.
Harley Davidson Torque Specs Chart (By Component)
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
Component
Torque Spec (ft-lbs)
Notes
Spark Plugs
10–14
Hand tighten first, then torque
Cylinder Head Bolts
42–44
Tighten in crisscross pattern
Primary Cover Bolts
108 in-lbs (9 ft-lbs)
Avoid overtightening
Clutch Hub Nut
70–80
Left-hand thread
Compensator Nut
150–165
Requires locking compound
Transmission & Drive Torque Specs
Component
Torque Spec (ft-lbs)
Notes
Transmission Drain Plug
14–21
Use new O-ring
Transmission Side Cover Bolts
84–108 in-lbs (7–9 ft-lbs)
Tighten evenly
Drive Pulley Nut
135–165
Apply thread locker
Rear Axle Nut (Softail/Touring)
95–105
Check alignment before torque
Wheels & Suspension Torque Specs
Component
Torque Spec (ft-lbs)
Notes
Front Axle Nut
50–55
Verify fork alignment
Rear Axle Nut
95–105
Check belt/chain alignment
Brake Caliper Mounting Bolts
25–28
Use blue Loctite
Handlebar Clamp Bolts
12–16
Tighten evenly
Triple Tree Pinch Bolts
20–27
Do not overtighten
Touring Models (Specific Torque Highlights)
Component
Torque Spec (ft-lbs)
Notes
Front Engine Mount Bolts
40–45
Check rubber mount wear
Rear Swingarm Pivot
45–50
Verify free movement
Touring Saddlebag Mounts
12–16
Prevent rattling
Softail Models (Specific Torque Highlights)
Component
Torque Spec (ft-lbs)
Notes
Swingarm Pivot Bolt
80–85
Grease bearings
Rear Shock Bolts
40–45
Tighten both sides evenly
Primary Chain Adjuster
21–27
Adjust before torque
Sportster Models (Specific Torque Highlights)
Component
Torque Spec (ft-lbs)
Notes
Rear Axle Nut
50–55
Check wheel alignment
Front Axle Nut
40–45
Verify rotor clearance
Rocker Box Bolts
15–18
Use 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
Clean Threads – Remove dirt, oil, and old thread locker.
Lubricate if Needed – Some bolts require light oil or grease (check manual).
Hand Start Bolts – Always start threading by hand to avoid cross-threading.
Use Torque Wrench – Tighten slowly until wrench clicks at the specified torque.
Follow Sequence – On multi-bolt components, tighten in crisscross or spiral pattern.
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.
Tonmoy is a recognized author and editor known for his deep passion and expertise in the world of motorcycles. His work goes beyond the mechanics and aesthetics, capturing the vibrant culture of motorcycle clubs and the strong sense of brotherhood shared by riders. Tonmoy’s special enthusiasm for motorcycle clubs adds depth to his writing, making his contributions to the motorcycle community both insightful and impactful
]]>https://www.twowheller.com/harley-davidson-torque-specs-chart/feed/0Harley 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/#respondFri, 24 Jul 2026 14:44:02 +0000https://www.twowheller.com/?p=1213Are 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)
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 Name
Production Year
Spark Plug Type
Gap (inches)
Notes
FLHT / FLHR / FLTR
2000–2008
6R12
0.038–0.043
Stock Plug
Touring Models
2009–2020
6R12 or Iridium 6R12A
0.038–0.043
Upgrade to Iridium for longer life
Touring Models
2021–2024
6R12 or E3.36
0.038–0.043
High-performance compatible
Spark Plug Chart for Harley Softail Series
Model Name
Production Year
Spark Plug Type
Gap (inches)
Notes
Softail (FXST / FLST)
1999–2006
6R12
0.038–0.043
Standard plug
Softail Models
2007–2017
6R12 / 6R12A
0.038–0.043
Compatible with EFI
Softail Models
2018–2024
M12 Iridium / 6R12X
0.038–0.043
Recommended Iridium for M8 engines
Spark Plug Chart for Harley Dyna Series
Model Name
Production Year
Spark Plug Type
Gap (inches)
Notes
Dyna (FXD, FXDWG)
1999–2006
6R12
0.038–0.043
Stock Plug
All Dyna Models
2007–2017
6R12A Iridium
0.038–0.043
Longer life option
Spark Plug Chart for Harley Sportster Series
Model Name
Production Year
Spark Plug Type
Gap (inches)
Notes
Sportster 883 / 1200
1991–2003
5R6A
0.038–0.043
Standard
Sportster Models
2004–2020
6R12
0.038–0.043
EFI compatible
Sportster Iron / Forty-Eight
2010–2022
6R12A Iridium
0.038–0.043
Performance upgrade
Spark Plug Chart for Harley V-Rod Series
Model Name
Production Year
Spark Plug Type
Gap (inches)
Notes
V-Rod (VRSC)
2002–2007
DCPR7E
0.031–0.035
Stock Plug
V-Rod Muscle / Night Rod
2008–2017
DCPR8EIX Iridium
0.031–0.035
High-performance option
Spark Plug Chart for Harley Street Series
Model Name
Production Year
Spark Plug Type
Gap (inches)
Notes
Street 500 (XG500)
2015–2020
CPR6EA-9
0.031–0.035
OEM Fit
Street 750 (XG750)
2015–2020
CPR6EA-9 or Iridium CPR6EAIX-9
0.031–0.035
Upgrade option
Street Rod (XG750A)
2017–2020
CPR7EA-9
0.031–0.035
Stock 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
Prepare the bike – Place your Harley on a stand and let the engine cool completely.
Locate the plugs – Remove the spark plug wires carefully (don’t pull by the wire, use the boot).
Remove old plugs – Use a spark plug socket and ratchet. Turn counterclockwise to remove.
Check gap – Measure the gap of the new plugs with a feeler gauge and adjust if necessary.
Install new plugs – Thread in by hand first to avoid cross-threading, then torque to spec.
Reconnect wires – Push the spark plug wires back until they click securely.
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.
Tonmoy is a recognized author and editor known for his deep passion and expertise in the world of motorcycles. His work goes beyond the mechanics and aesthetics, capturing the vibrant culture of motorcycle clubs and the strong sense of brotherhood shared by riders. Tonmoy’s special enthusiasm for motorcycle clubs adds depth to his writing, making his contributions to the motorcycle community both insightful and impactful
]]>https://www.twowheller.com/harley-davidson-spark-plug-chart/feed/0Harley Davidson Fuses & Relays Chart [Wiring Guide]
https://www.twowheller.com/harley-davidson-fuse-chart/
https://www.twowheller.com/harley-davidson-fuse-chart/#respondFri, 24 Jul 2026 13:08:17 +0000https://www.twowheller.com/?p=1219Electrical 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.
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)
Tip: Fuse ratings are in amps (A). Always replace with the same rating specified for your bike.
Touring Models Fuse & Relay Chart
Model Name
Production Year
Main Fuse (A)
Starter Relay
Other Relays
Notes
Touring FLHT / FLHR / FLTR
2000–2007
30A
Starter Relay 31506-00
System Relay, Accessory Relay
Standard setup
Touring Models
2008–2013
40A
Starter Relay 31506-00B
System Relay, Fuel Pump Relay
Higher main fuse
Touring Models
2014–2020
50A
Starter Relay 31506-08
BCM-controlled Relays
Includes lighting relay
Touring Models
2021–2024
50A
Starter Relay 31506-08B
BCM-integrated Relays
Smart electrical system
Softail Models Fuse & Relay Chart
Model Name
Production Year
Main Fuse (A)
Starter Relay
Other Relays
Notes
Softail (FXST / FLST)
2000–2006
30A
Starter Relay 31506-00
System Relay
Standard
Softail Models
2007–2017
40A
Starter Relay 31506-06
Ignition Relay, Lighting Relay
EFI models
Softail (Milwaukee-Eight)
2018–2024
50A
Starter Relay 31506-08
BCM-integrated Relays
Modernized system
Dyna Models Fuse & Relay Chart
Model Name
Production Year
Main Fuse (A)
Starter Relay
Other Relays
Notes
Dyna FXD / FXDWG
2000–2006
30A
Starter Relay 31506-00
Ignition Relay
Standard
All Dyna Models
2007–2017
40A
Starter Relay 31506-06
System Relay, Lighting Relay
Last generation Dyna
Sportster Models Fuse & Relay Chart
Model Name
Production Year
Main Fuse (A)
Starter Relay
Other Relays
Notes
Sportster 883 / 1200
1999–2003
30A
Starter Relay 31506-99
Ignition Relay
Carb models
Sportster Models
2004–2013
30A
Starter Relay 31506-04
System Relay, Accessory Relay
EFI introduced
Sportster Models
2014–2020
40A
Starter Relay 31506-08
BCM-integrated Relays
Modern wiring
V-Rod Models Fuse & Relay Chart
Model Name
Production Year
Main Fuse (A)
Starter Relay
Other Relays
Notes
V-Rod VRSC
2002–2006
30A
Starter Relay 31506-00
System Relay
Stock setup
V-Rod Muscle / Night Rod
2007–2017
40A
Starter Relay 31506-06
Fuel Pump Relay, Lighting Relay
High-performance wiring
Street Models Fuse & Relay Chart
Model Name
Production Year
Main Fuse (A)
Starter Relay
Other Relays
Notes
Street 500 (XG500)
2015–2020
30A
Starter Relay 31506-06
Lighting Relay
Compact system
Street 750 (XG750, XG750A)
2015–2020
30A
Starter Relay 31506-06
Fuel Pump Relay, System Relay
Urban 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
Turn off ignition – Prevents shorts or sparks.
Locate fuse box – Usually under the seat or side cover.
Identify blown fuse – Look for a broken filament inside.
Replace with same rating – Never install a higher-amp fuse.
Check relays – Swap with a known working relay for troubleshooting.
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.
Tonmoy is a recognized author and editor known for his deep passion and expertise in the world of motorcycles. His work goes beyond the mechanics and aesthetics, capturing the vibrant culture of motorcycle clubs and the strong sense of brotherhood shared by riders. Tonmoy’s special enthusiasm for motorcycle clubs adds depth to his writing, making his contributions to the motorcycle community both insightful and impactful
]]>https://www.twowheller.com/harley-davidson-fuse-chart/feed/0Harley Davidson Brake Pad Fitment Chart [Front & Rear Guide]
https://www.twowheller.com/brake-pad-fitment-chart/
https://www.twowheller.com/brake-pad-fitment-chart/#respondFri, 24 Jul 2026 12:40:09 +0000https://www.twowheller.com/?p=1225When 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 Model
Year Range
Front Brake Pad
Rear Brake Pad
Notes
Sportster 883/1200
2004 – Present
42836-04A
42831-04A
Dual disc options on some models
Softail Models
2000 – Present
42836-00A
42831-00A
Some Softails share Touring pads
Dyna Models
2000 – 2017
42836-00A
42831-00A
Dyna Wide Glide uses dual disc pads
Touring Models
2000 – Present
41300002A
41300003A
Includes Road King, Street Glide, Electra Glide
V-Rod
2002 – 2017
42836-02A
42831-02A
Front dual-disc setup
Street 500/750
2015 – Present
41300100
41300101
Compact size pads
Pan America 1250
2021 – Present
41300200
41300201
Brembo 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.
Tonmoy is a recognized author and editor known for his deep passion and expertise in the world of motorcycles. His work goes beyond the mechanics and aesthetics, capturing the vibrant culture of motorcycle clubs and the strong sense of brotherhood shared by riders. Tonmoy’s special enthusiasm for motorcycle clubs adds depth to his writing, making his contributions to the motorcycle community both insightful and impactful
]]>https://www.twowheller.com/brake-pad-fitment-chart/feed/0Harley Davidson Oil Filter Chart [Find the Right Fit]
https://www.twowheller.com/oil-filter-chart/
https://www.twowheller.com/oil-filter-chart/#respondFri, 24 Jul 2026 11:49:05 +0000https://www.twowheller.com/?p=1222Changing 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)
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 Name
Production Year
Oil Filter Part #
Notes
FLHT / FLHR / FLTR
1999–2006
63796-77A
Standard filter
Touring Models
2007–2017
63798-99A / 63731-99A (Chrome)
Fits Twin Cam engines
Touring Models
2018–2024
62700296 (Black), 62700297 (Chrome)
Fits Milwaukee-Eight engines
Softail Models Oil Filter Chart
Model Name
Production Year
Oil Filter Part #
Notes
Softail FXST / FLST
2000–2006
63796-77A
Standard filter
Softail Models
2007–2017
63798-99A / 63731-99A
Twin Cam compatibility
Softail (M8 Engines)
2018–2024
62700296 / 62700297
Milwaukee-Eight engines
Dyna Models Oil Filter Chart
Model Name
Production Year
Oil Filter Part #
Notes
Dyna FXD / FXDWG
2000–2006
63796-77A
Standard filter
Dyna Models
2007–2017
63798-99A / 63731-99A
Fits all Dyna models
Sportster Models Oil Filter Chart
Model Name
Production Year
Oil Filter Part #
Notes
Sportster 883 / 1200
1986–2003
63805-80A
Standard filter
Sportster Models
2004–2020
63796-77A (Black), 63798-99A (Chrome)
EFI and carb models
Sportster Iron / Forty-Eight
2010–2022
63798-99A
Popular upgrade option
V-Rod Models Oil Filter Chart
Model Name
Production Year
Oil Filter Part #
Notes
V-Rod VRSC
2002–2006
63793-01
Stock filter
V-Rod Muscle / Night Rod
2007–2017
63731-99A
High-performance fit
Street Models Oil Filter Chart
Model Name
Production Year
Oil Filter Part #
Notes
Street 500 (XG500)
2015–2020
63793-01K
Compact engine design
Street 750 / Street Rod (XG750, XG750A)
2015–2020
63793-01K
OEM 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.
Tonmoy is a recognized author and editor known for his deep passion and expertise in the world of motorcycles. His work goes beyond the mechanics and aesthetics, capturing the vibrant culture of motorcycle clubs and the strong sense of brotherhood shared by riders. Tonmoy’s special enthusiasm for motorcycle clubs adds depth to his writing, making his contributions to the motorcycle community both insightful and impactful
]]>https://www.twowheller.com/oil-filter-chart/feed/0Harley Wheel Interchange Chart [Find Perfect Match]
https://www.twowheller.com/harley-wheel-interchange-chart/
https://www.twowheller.com/harley-wheel-interchange-chart/#respondTue, 21 Jul 2026 07:17:01 +0000https://www.twowheller.com/?p=89If 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
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/Year
Front Wheel Interchangeability
Rear Wheel Interchangeability
Road King, Electra Glide, Road Glide (2000-2003)
Rim- 16×3; Tire size– 130/90-16
Rim– 16×3; Tire size- 130/90-16
Road King (2014–2019)
Rim–17×3; Tire size– 130/80-17
Rim-16×5; Tire size– 180/65-16
Blackline (2011-2013)
Rim–21×2.15; Tire size–80/90-21
Rim-16×3; Tire size–140/85-16
Things That Affect Wheel Interchangeability On Harley
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.
Tonmoy, the brains behind the influential motorcycle-focused website, TwoWheller.com, is a dedicated and passionate advocate for biking culture. Born and raised in a family of motorcycle enthusiasts, his love for two-wheeled transportation was ignited at an early age. His commitment to providing in-depth reviews and helpful tips for riders has established him as a respected figure in the motorcycle community.