OS Giken Mini R56 Cooper S STR Twin Plate Clutch clutch kit (STR2C) Designed for 188mm - Found

Designed for 188mm - Found in E36 M3 (14mm Ring Bolts)

Acura NSX - NA2 - C32

Toyota Celica - 3SGE

and STR2CD

PORSCHE Boxster non-S 986

OS Giken Mini R56 Cooper S STR Twin Plate Clutch clutch kit (STR2C) Designed for 188mm - FoundThe STR Clutch line up was designed to hold high capacity power while still retaining a relatively light clutch pedal. This technology was driven from our racer's demand for a lighter clutch during long endurance races in Japan. Heavy clutch pedals lead to driver fatigue during long endurance racing. The STR2C Twin plate feature solid hub clutch disks to provide efficient transfer of power while providing reliability and strength under heavy abuse.