The Competition Clutch lightweight steel flywheel for 1989–2002 Nissan Skyline RB25 applications is a one-piece 4140 forged-steel unit intended for naturally aspirated and street-driven use. Recommended for Stage 1 and Stage 2 clutch setups, it helps preserve low-end torque and driveability while reducing rotating mass. Available weights vary by application from roughly 8 to 18 lb.
Competition Clutch 89-02 Nissan Skyline RB25 12lb Steel Flywheel