Harddrive 1-Inch 133-Tooth Carbon Fiber Rear Drive Belt - Harley Twin Cam Softail
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 133-tooth profile, is engineered for high-demand Harley-Davidson Twin Cam Softail drivetrains. Reinforced with carbon fiber, it offers superior strength and durability over aramid alternatives. Ensure reliable power transfer to the pavement.
Why riders pick this
- Carbon fiber tension member for increased strength
- Puncture-resistant tooth-facing fabric
- Synthetic rubber teeth for low noise and temperature resistance
- Flexible synthetic rubber backing for width stability
- Engineered for high-demand V-Twin drivetrains
For Twin Cam Softail riders who demand more from their motorcycles, this Harddrive 1-inch rear belt is a vital upgrade. Its carbon fiber tension member provides a significant boost in strength and resistance to stretching, making it ideal for bikes that see aggressive riding or increased power output. This belt is designed for consistent, long-term performance.
Unmatched Strength for Your Softail
- Carbon fiber tension member provides increased strength over aramid-based belts
- Treated tooth-facing fabric resists punctures and damage from road debris
- Synthetic rubber teeth ensure low noise and excellent temperature resistance
- Synthetic rubber backing increases flexibility and width stability under load
Built to Endure
Ensure your Twin Cam Softail's power is delivered smoothly and reliably with this Harddrive drive belt. Its advanced construction helps it withstand the stresses of the road, from daily commutes to spirited rides. Always confirm your motorcycle's original equipment belt specifications to guarantee precise fitment before ordering.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 21201902
- UPC: 191361537585
- Length: 14 in
- Width: 14 in
- Height: 2 in
- Weight: 3 lbs
- Tooth Count: 133
Common questions
What makes this belt stronger than standard drive belts?
The carbon fiber tension member provides superior strength and durability compared to aramid-based belts, making it ideal for demanding riding conditions and higher power applications in V-twin motorcycles.
Will this belt fit my specific Harley Twin Cam Softail?
This belt is designed for Harley Twin Cam Softail models that require a 1-inch, 133-tooth rear belt with OE# 40058-07. Please verify your bike's exact OEM belt specifications using our Shop by Bike tool before ordering.
Can this belt handle cold weather riding?
Yes, the synthetic rubber compound used in this belt is rated to -30°C, ensuring it performs effectively and reliably even in freezing temperatures.
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 | 820-60004 |
| WEIGHT | 3.0 lb |
