This flywheel, like the rest of the ones we manufacture, are made of CrMo FORGED STEEL and then receive a special heat treatment called "NITRIDING TREATMENT" offering hardness values around 60 HRC, when the vast majority of competition flywheels do not exceed 30 HRC, hence our flywheels are virtually unbreakable and highly resistant to wear, offering 1 year warranty in competition without mileage limit!
