Spec 90-01 Nissan Skyline RB20 Steel Flywheel (Nissan Skyline RB20)

Engineered as a durable replacement for RB20 engines, the Spec 90-01 steel flywheel provides a solid friction surface and consistent clutch engagement for Nissan Skyline applications. Built from hardened steel, this flywheel is intended to restore reliable driveline response and long-term wear resistance where the original flywheel has fatigued. Use the Spec 90-01 to maintain proper clutch geometry and rotational inertia when servicing or upgrading the Skyline's transmission assembly.