When you're looking for quickier acceleration, a lightened flywheel is a necessity for overall engine performance gain! Tomioka racing Light weight flywheels bring the best of factory weight flywheel and the ultra light weight flywheel for well balanced quicker revs that still maintain street driveability. The Tomioka Racing flywheels are constructed from precision CNC machined chromoly steel best suited for weight reduction and inertia and clutch cooling improvement. TR flywheels are designed to improve response with extra strength, and best of all affordable!