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this may require additional modification as it was originally designed for the Yamaha Aerox
Having a lightweight and durable piston will help achieve more power and less strain
The bracket will determine the distance offset to fit the correct wheel
spring preload adjustment
Polini Evolution Front Pulley - Minarelli Horizontal & Vertical Honda CBR250/300R this may require additional modificationThe Polini Evolution Drive Face gets better cooling through its larger cooling fans. Made of light synthetic materials and adjusted to Polini's variator pitch, it's easy to change. Higher RPMs made possible through weight reduction. This will fit both the horizontal and vertical. Applications Yamaha Zuma Aprila SR50 MBK Booster
