clutch kits for street/dirt/atv street 2 choices 1 standard ck series almost identical to original equipment clutch plates the ck series are a cork based product impregnated with aluminum particles to increase wear life and heat resistance material is highly compressed to avoid swell and clutch drag and is an ideal general purpose replacement material for all grades and sizes of motorcycle kit includes a complete engine set of friction plates only 2 race/sport src kevlar series a kevlar paper lined plate set complete with heavy duty clutch springs1 the src kit is ideal for heavy sport bikes ...