Harddrive Standard 11.5" Polished Rear Brake Rotor - Harley Touring & 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.
Upgrade your V-twin's rear braking with this Harddrive 420 stainless steel brake rotor. Featuring a polished finish, it’s precision-ground and induction-hardened for exceptional wear resistance and consistent performance. The drilled design helps to manage heat and shed water for reliable stopping power.
Why riders pick this
- 420 stainless steel for high durability
- Induction hardened for extended wear life
- Precision ground for consistent braking
- Drilled pattern for improved heat and water management
- Polished finish for a custom aesthetic
- Works with sintered and organic brake pads
For riders who demand consistent braking performance, this Harddrive rear brake rotor delivers. Crafted from 420 stainless steel and finished with a high-polish shine, it not only performs under pressure but also adds a custom touch to your Harley-Davidson or Indian Motorcycle. Its robust construction is designed to withstand the rigors of the road.
Built for Lasting Braking Performance
- Durable 420 stainless steel construction
- Surface induction hardened for superior wear resistance
- Precision ground for optimal trueness and braking contact
- Drilled design aids in heat dissipation and wet-weather braking
- Compatible with both sintered and organic brake pads
Reliable Rear Braking for Your V-Twin
A well-functioning rear brake is crucial for control and stability, especially on heavier V-twins. This Harddrive polished rear rotor provides a significant upgrade or replacement, ensuring reliable stopping power. Pair it with quality brake pads and ensure your entire braking system is properly maintained for the best results.
Specifications
- Brand: Harddrive
- Manufacturer Part #: 144603
- UPC: 191361139611
- Material: 420 stainless steel
- Finish: Polished
- Diameter: 11.5 in
- Inner Diameter: 2.22 in
- Weight: 2.2 lbs
- Country of Origin: China (Taiwan)
Common questions
What type of brake pads are recommended for this polished rotor?
Organic brake pads are recommended for optimal performance and longevity with polished stainless steel rotors, though this rotor is also compatible with sintered pads.
Is this a front or rear brake rotor?
This is a rear brake rotor. Please confirm your bike's rear rotor diameter and inner bore specifications using our Shop by Bike tool before ordering.
Will this fit my specific Harley or Indian model?
This rotor fits many V-twin motorcycles. For precise compatibility, verify your bike's current rear rotor diameter and inner bore before purchasing through our Shop by Bike feature.
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 | Brakes |
| SKU | 820-51845 |
| WEIGHT | 2.2 lb |
