R Series
The R Series is OS Gikens' highest capacity series. The R-series is designed for very high horsepower cars. The unique floating center hub design is made to withstand the impact and abuse of extremely powerful racing cars. Coupled with OS Giken's unique billet aluminum cover, variants can easily handle over 1000 hp.
The R series is mainly/only suitable for racing use.
This R series coupling is equipped of 2 damped clutch plates.
Delivery time depends on stock OS Giken