Many racers and teams around world are using these clutches in both their bikes. As the name implies a slipper clutch is a device that enables the clutch to slip, but only on a down shift where excessive engine breaking can cause the rear wheel to lock up. This device will let the clutch release when there is too much engine breaking i.e. when heavy breaking and shifting repeatedly occurs. This means that better control over the rear wheel is maintained and greater stability of the bike overall.