Harddrive 1" 137-Tooth Carbon Fiber Rear Belt - Harley Sportster & Touring
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.
Replace your worn-out rear belt with a Harddrive 1" 137-tooth carbon fiber reinforced drive belt. This high-performance belt is engineered for V-twin drivetrains, offering enhanced strength and durability over aramid alternatives.
Why riders pick this
- Carbon fiber reinforcement for superior strength and durability
- Treated tooth facing resists punctures and road debris
- Synthetic rubber construction for low noise and temperature resistance
- Enhanced flexibility and width stability
- Built in the USA for V-twin motorcycle drivetrains
When it's time to replace your final drive belt, choosing the right material matters for V-twin performance. The Harddrive 1" 137-tooth rear belt steps up to the challenge, engineered with a carbon fiber reinforced tension member that outperforms traditional aramid belts in both strength and longevity. This belt is built to handle the demands of the road, ensuring your power gets to the pavement efficiently and reliably.
Enhanced Durability for the Long Haul
- Carbon fiber tension member provides superior strength and extended lifespan
- Specially treated tooth facing resists punctures and damage from road debris
- Synthetic rubber teeth ensure quiet operation and consistent performance across temperatures
- Synthetic rubber backing offers increased flexibility and maintains width stability
Engineered for Harley-Davidson Drivetrains
This Harddrive rear belt is designed as a direct replacement for various Harley-Davidson Sportster and Touring models. Its robust construction makes it an ideal choice for riders looking to upgrade their bike's reliability without compromising on performance. Ensure you confirm the 137-tooth count and 1-inch width for your specific model before installation.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 21201907
- UPC: 191361537608
- Tooth Count: 137
- Width: 1 inch
- Length: 14 in
- Weight: 3 lbs
- Country of Origin: USA
Common questions
What makes this belt stronger than other options?
This Harddrive rear belt features a carbon fiber reinforced tension member, which provides higher structural strength and durability compared to traditional aramid-reinforced belts.
Will this belt fit my specific Harley-Davidson model?
This belt is designed for Harley-Davidson Sportster and Touring models requiring a 1" wide, 137-tooth rear belt. Please confirm your bike's original equipment part number and specifications using our Shop by Bike tool before ordering.
Is this belt designed for extreme riding conditions?
Yes, the synthetic rubber teeth and backing are engineered to perform reliably across a wide temperature range, from -30°C to +130°C, ensuring consistent performance in varied climates.
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 | 820-60006 |
| WEIGHT | 3.0 lb |
