Over the years we have fielded many calls and questions about cush drives and whether they are required for supermoto duty. Some call them "puss drives", others believe that having one is a requirement for any motorcycle and without one your rear shock could break off and ram up the back of your motor and continue on upwards. Others are just plain skeptical and don't know what to believe. Still others could not give a hoot what they are or why you'd need one. Cush drives are rubber dampening cushions that typically line where your wheel hub bolts to your sprocket. The idea is that adding a rubber bushing in between these two metal contact points will relieve stress torque on your parts. Large 600CC, 1000CC and 1200CC bikes almost always feature a cush drive in order to help the bike manage the heavy loads the rear drive train must endure under heavy power torque. Small sub-600 motorcycles rarely feature a cush drive, with the exception of factory KTM hubs in the 450,