SRC Street Racer™ Clutch Kit by EBC. An aramid paper lined plate set complete with heavy duty clutch springs. An aramid paper lined plate set complete with heavy duty clutch springs (for bikes fitted with diaphragm type springs EBC Brakes can now supply a heavy duty spring kit) the SRC kit is ideal for heavy sport bikes faster riders and production based race use. Advantages of the SRC aramid series are longer life higher heat resistance although this clutch has a more aggressive/faster take up than the CK cork series.