R Series? for BMW M3 (S50, S52, S54)
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 900 hp.
The R series is mainly/only suitable for racing use.
This R series coupling is equipped of 3 clutch plates for a lot of power.
Delivery time depends on OS Giken stock.
The R3A is a clutch with 184mm clutch plates for a lower weight than the R3C, but can therefore also be less power.
