The FSK 100-series is a great performance upgrade for the standard bikes front end. The kit is designed to improve the handling, cornering and braking and give the rider a noticeable improved feeling in all areas. The kit consists of a replacement top cap and higher performance rate springs. It is available for small sports and street bikes such as the Yamaha R25/R3, Kawasaki Ninja 250/300R, Honda CBR 250/300R, Honda CB650F and the Kawasaki ER6N.