OS Giken Mitsubishi CP9A Lancer Evo 4-9 STR Twin Plate clutch kit (STR2C) The solid hub clutch discs

The solid hub clutch discs are 215mm in size and are good up to about 700lbs ft of torque reliably

Lotus Elise

The clutch discs are 184mm in size and is good up to about 300lbs ft

123mm ring gear type (130

The [STR1CD] - STR single plate dampened clutches give some forgiveness to the transmission by absorbing drivetrain shock while providing reliability and [STR1CD] - STRength under heavy abuse

OS Giken Mitsubishi CP9A Lancer Evo 4-9 STR Twin Plate clutch kit (STR2C) The solid hub clutch discsThe 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.