Harddrive 1-Inch 131-Tooth Carbon Fiber Rear Drive Belt - Harley Dyna
About Harddrive
Harddrive is the house performance and replacement line built for American V-twins, covering everything from engine hardware and electrical to controls, lighting and chassis parts. The range is aimed squarely at Harley-Davidson and Indian riders who want a direct-fit part without dealer pricing, and it spans decades of model years — from Evolution-era Softails to current Milwaukee-Eight baggers.
This Harddrive 1-inch rear drive belt, featuring a 131-tooth count, is engineered for the demanding powertrains of Harley-Davidson Dyna models. With carbon fiber reinforcement, it delivers superior strength and longevity. Keep your Dyna hooked up with reliable power delivery.
Why riders pick this
- Carbon fiber tension member for superior strength
- Synthetic rubber teeth for wide temperature range
- Puncture-resistant tooth facing fabric
- Flexible synthetic rubber backing for stability
- Engineered for demanding V-Twin powertrains
When you're pushing your Dyna, every component in the drivetrain matters. This Harddrive 1-inch rear belt is designed to excel under pressure, featuring a carbon fiber tension member that provides enhanced strength and resistance to stretching compared to standard aramid belts. It's built to withstand the rigors of aggressive riding and daily use.
Enhanced Strength and Longevity
- Carbon fiber tension member provides superior strength for demanding applications
- Synthetic rubber teeth are rated for a wide temperature range, from cold to hot
- Puncture-resistant tooth facing fabric protects against road debris
- Synthetic rubber backing ensures flexibility and maintains consistent width
Reliable Power for Your Dyna
This Harddrive drive belt is a critical upgrade for any Dyna rider looking for improved durability and performance. Its robust construction ensures that power is transferred smoothly and efficiently to the rear wheel. Always cross-reference the OE number with your bike's specifications to confirm proper fitment before installation.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 21201901
- UPC: 191361537578
- Tooth Count: 131
- Width: 1 in
- Length: 14 in
- Weight: 3 lbs
- Country of Origin: USA
Common questions
What's the main advantage of carbon fiber in this belt?
The carbon fiber tension member provides higher structural strength and superior performance compared to traditional aramid reinforcement, especially under the high stress of V-twin drivetrains.
Will this belt fit my specific Harley Dyna model?
This belt is designed for Harley Dyna models requiring a 1-inch, 131-tooth rear belt with OE# 40046-07. Please verify your bike's exact OEM belt specifications using our Shop by Bike tool before ordering.
Can this belt withstand cold weather riding?
Yes, the synthetic rubber construction of this belt is rated to perform reliably in temperatures from -30°C to +130°C, ensuring consistent performance even in challenging cold weather conditions.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Harddrive |
| TYPE | Belts |
| SKU | 820-60003 |
| WEIGHT | 3.0 lb |
