Description
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 RK FRONT SPROCKETÂ
![](https://www.yamaha-motor.com.au/assets/images/logos/yamaha-revs-your-heart.png)
RK Sprockets are manufactured using the latest industry
 leading Japanese technology.Â
RK Sprockets are used by world leading motorcycleÂ
manufacturers and race teams.Â
RK has a range of both steel and light weight alloy sprockets.
Advanced heat treatment
Front sprocket manufactured using SCM-415 Alloy Steel
Precision machining for enhanced power delivery and efficiency
Shot peened hardened surface
Special carburizing heat treatment for hardened teeth
 and maximum durability
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Fits The Following….
YZ250 1976 – 1977
YZ250 1999 – 2017
WR450F 2003 – 2017
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