Harddrive 1-Inch 136-Tooth Carbon Fiber Rear Drive Belt - Harley Sportster
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 136-tooth profile, is built with carbon fiber reinforcement for Harley-Davidson Sportster models. It delivers the high strength and reliability demanded by performance-oriented V-twin riders. Experience consistent power delivery with every ride.
Why riders pick this
- Carbon fiber tension member for superior strength
- Puncture-resistant tooth facing fabric
- Synthetic rubber teeth for low noise and wide temperature range
- Flexible synthetic rubber backing for stability
- Engineered for demanding V-Twin drivetrains
For Sportster riders who demand unwavering performance, this Harddrive 1-inch rear belt is an essential upgrade. Its carbon fiber tension member provides superior structural integrity, outperforming traditional aramid-type belts under the stresses of aggressive riding. This belt is engineered for reliability and long-term durability.
Enhanced Durability for Sportster Performance
- Carbon fiber tension member provides superior strength for demanding drivetrains
- Puncture-resistant tooth facing fabric protects against road hazards
- Synthetic rubber teeth resist noise and perform reliably across a wide temperature range
- Flexible synthetic rubber backing ensures consistent width stability
Ready for the Road or Track
Whether you're tearing up the streets or hitting the track, this Harddrive drive belt ensures your Sportster's power gets to the ground efficiently and reliably. Its robust construction is designed to handle the unique demands of the Sportster platform. Always verify the 1-inch width and 136-tooth count with your bike's existing belt before ordering to ensure correct fitment.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 21201905
- UPC: 191361537592
- Tooth Count: 136
- Width: 1 inch
- Length: 14 in
- Weight: 3 lbs
- Country of Origin: USA
Common questions
What makes this belt better than an aramid belt?
The carbon fiber tension member provides higher structural strength and better performance under extreme load and stress compared to aramid alternatives, enhancing durability and reliability for your Sportster.
Will this belt fit my specific Harley Sportster model?
This belt is designed for Harley Sportster models that require a 1-inch wide, 136-tooth rear belt. Please verify your bike's exact OEM belt specifications using our Shop by Bike tool before ordering to confirm compatibility.
Can this belt handle cold weather riding?
Yes, the synthetic rubber teeth are rated from -30°C to +130°C, ensuring consistent and reliable performance even in 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 | 820-60005 |
| WEIGHT | 3.0 lb |
