This 45-tooth hardened steel rear sprocket is precision-machined for motorcycles running a 525 pitch drive chain. With a 45-tooth count on the higher end of the typical range, it delivers a notably lower final drive ratio — favouring stronger acceleration and responsive low-to-mid range power over maximum top-end speed.
Key Features
- 45-tooth rear sprocket for 525 pitch chain
- Hardened precision-machined steel for strength and long wear life
- Lower final drive ratio for improved acceleration and throttle response
- Suitable as a direct replacement or performance gearing upgrade
What does a 45T rear sprocket do to performance?
A larger rear sprocket lowers the overall gearing, meaning the engine revs higher at any given speed. This delivers stronger acceleration and more responsive riding — particularly beneficial for street, sport, and technical riding where low-to-mid range punch is valued over outright top speed.
Frequently Asked Questions
What chain pitch does this suit? Designed for 525 pitch chains. Always confirm your existing chain pitch before purchasing.
How does 45T compare to a smaller rear sprocket? More teeth means lower gearing — stronger acceleration and torque with a modest reduction in top speed.
Should I replace my chain and front sprocket at the same time? Yes. Replacing the complete drivetrain together ensures even wear and maximises the longevity of all components.
