Complete handful of 4-shoe clutch system includes flywheel, lightweight moderate aluminum clutch footwear, silver (soft) clutch springs, installation screws, flywheel collar, and flywheel nut. The 4-shoe clutch design allows super-easy clutch developing from soft to difficult environment, each well suited for various track conditions and sporting design. The 4-shoe clutch features smaller, lighter inside components, along with the design allows more balanced clutch bell engagement compared to the classic 3-shoe design. The 4-shoe design allows using combinations of various hardnesses of footwear and springs for clutch engagement setting, including allows several different pairs of footwear and springs gives ultra-fine engagement settings. You will discover 4 different hardness of footwear and 3 various hardness of springs recommended. Changing the environment is straightforward because of the original installation screws that keep carefully the footwear and springtime. SOFT clutch environment creates the utmost number of traction and engages earliest; MODERATE clutch developing allows more clutch slippage and partcipates in the long run; INVOLVED clutch developing engages latest and much more revs to engine. Optional graphite footwear engage more smoothly and offer smoother clutch acceleration. Becomes necessary with 3BB clutch bells #358413 or #358413-L just.