Clutch Masters FX100 Heavy Duty Rigid Steel Backed Disc | Ford Focus (05-11) (07148-HD00-R)Heavy Duty Rigid Steel Backed Disc Clutch Kit 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,