The RK 45-tooth steel rear sprocket is a durable, reliable replacement sprocket designed for motorcycles running a 525-pitch drive chain. Built from hardened carbon alloy steel, it prioritises wear resistance and longevity over lightweight performance — making it an ideal choice for street and track riders who demand a sprocket that lasts.
Key Features
- 45-tooth rear sprocket for 525 pitch chain
- Carbon alloy steel construction for superior wear resistance and strength under load
- More durable than aluminium alternatives — less prone to tooth rounding or failure
- Suitable for general street and track use
- Part number: 32-35F-45
Steel vs Alloy — What to Consider
Steel sprockets outlast aluminium significantly, making them the preferred choice for high-mileage street riding and track use where durability matters most. The trade-off is slightly greater weight and rotational inertia compared to lighter alloy options.
Frequently Asked Questions
What chain pitch does this suit? Designed for 525 pitch chains. Always confirm your existing chain pitch before purchasing.
Is steel better than aluminium for longevity? Yes. Steel sprockets offer significantly greater wear resistance, making them the better long-term choice for street and performance riding.
Should I replace my chain and front sprocket at the same time? Yes. Replacing the complete drivetrain together ensures even wear and maximises component longevity.
