DRC Series Off-Road Clutch Rebuild Kit by EBC. The Ultimate clutch rebuild for your ATV and Moto Cross machine. Here s why? Stack height is the all important factor when renewing a clutch and riders are always best to buy a complete kit than separate single plates as sold by bike manufacturers. Replacing just the Apparently worn plate or plates may not even get close to rebuilding your clutch to its original stack height and all you get is clutch slip and the job has to be done again. Compare that to the guaranteed results of the EBC DRC Clutch Kit.