If you are in possession of a slipper with our clutch with spider spring, with this upgrade kit you can update it to an adjustable slipper clutch.
You eliminate the spider spring from the clutch and replaced it with 6 springs in stainless steel, the kit includes 3 sets of branded caps (1.7 - 1.85 to 2.1). By replacing the caps you calibrate the engine brake. For changing the calibration it is simple and fast - the clutch does not need to be removed or disassambled.
The kit can be installed on all Kbike 6-spring slipper clutches