Hays Steel Flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing.
Precision balanced to either neutral (internal) or Detroit (external) specifications
Meets SFI specification 1.1 for racing
Billet Steel Performance Flywheel handles the stress of high RPMs and severe punishment of racing. Certified billet material in weights up to 50 pounds. Precision balanced.