Replacement and sports variator, depending on the model with 6 or 8 variator rollers and with or without variator spring. Precisely manufactured, the half-pulley is made of a silicon-aluminum alloy on high-precision CNC machines and then diamond-ground, the included variator rollers are PTFE coated and therefore self-lubricating, self-lubricating plain bearing, optimized shifting, improved acceleration, slightly increased top speed, tunable to every model. INFO: For some models, the black variator cover is not included. In this case, the original one can and must be reused. Not approved for road use! Number of rollers 6 pcs. Article type Version Variator Main color silver Option without V-belt Variation Sport