Clutch Masters FX850 Twin Disc Race Kit | Hyundai Genesis Coupe (10-12) (05095-TD8R-SH)Twin Disc 8. 5in Race Kit w Steel FW & Slave by Clutch Masters Many of the traditional high performance aftermarket clutch kits can cause excessively increased pedal pressure. Such action places an unsafe amount of pressure on the delicate crankshaft thrust bearing found in a number of today's sport compact vehicles. Clutch Masters' design team knows that placing undue stress on the thrust bearing causes it to prematurely wear or completely fail,