Seller notes

Sports Racing clutch kitdesign for racing improve take off speed , accelerate speed. over range racing type variator :with longer ramp design will get about 5% top speedover range mean= longer roller ramp!!!!variator diameter 94mm include:1x Variator kit ( for 13mm splines crank)1x clutch kit1x high friction clutch bell.1x 2000rpm torque spring.1x roller set 4g-9g will forMinarelli horizontal type 2 stroke/2T 50cc 70cc scooter & ATV engineYamaha JOG 50, Zuma 50 YW50(2003-2011) , Vino 50cc YJ50 2...

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