OS Giken Mazda RX7 13BT STR Series Twin Plate w/Soft Diaphragm Clutch

This is the OS Giken STR Series Twin Plate Clutch kit for your 1993-1995 Mazda RX-7 with the 13BT engine. Inside this box, you'll find the twin clutch discs, the pressure plate assembly with a soft diaphragm, and the necessary alignment tool. This clutch is built to handle the demands of a high-performance rotary engine, offering a significant upgrade over the stock clutch for drivers who push their RX-7 hard.

The twin plate design is key here. It spreads the clamping force over two friction surfaces, which allows for a much higher torque capacity compared to a single plate clutch. This means you can confidently put down serious power without worrying about clutch slip. OS Giken uses a soft diaphragm spring in this STR series, which is designed to make engagement feel smoother and more manageable, especially in daily driving situations, without sacrificing the clutch's ability to hold power. This is a notable improvement for a twin plate setup, which can sometimes feel grabby.

When installing a twin plate clutch like this, it's important to ensure everything is properly aligned. The included alignment tool is crucial for getting the clutch discs perfectly centered on the flywheel. This kit is designed as a direct replacement for your stock clutch assembly, meaning it fits right into the existing drivetrain components. If you're rebuilding your rotary engine or have significantly increased its power output, this OS Giken twin plate clutch is a well-built option to ensure your drivetrain can handle the power reliably.