STM WET SLIPPER CLUTCH YAMAHA R25 2014-

STM slipper clutches offer two major advantages; to assist the rider and help prevent damage to the engine and gearbox. The slipper clutch assists the rider by reducing the effect of engine braking. Engine braking causes the rear wheel to ‘lock up’ and ‘patter’ when braking hard for a corner. A rider that is too aggressive in this situation suffers, because the rear wheel loses contact with the ground, making continued braking and direction change much harder to accomplish.