Flywheel-Aluminum PC F1; High Performance; Lightweight with Replaceable FrictionAluminum Flywheel; 157T Ring Gear;High Performance And Lighter Weight To Free Additional HorsepowerMilitary Spec Fasteners For Reliability And StrengthBolt-on Replaceable Friction PlateStepped Dowels On Most ApplicationsBillet 6061 T6 Or 2024 T4 Aluminum BodyReplaceable Hardened 1050 Steel Ring GearLower MOI For Faster Throttle Response40-60 Percent Lighter Than Stock For Quicker AccelerationHeat Treated Friction Plate For Optimum Grip And Long LifeFidanza Performance lightweight aluminum flywheels are designed, engineered and manufactured right here in the USA. Our team doesn't just take a stock flywheel and copy it out of aluminum like some others do. We actually analyze the originals and engineer improvements where needed; whether it be in overall balance, critical clearances or improved design, our flywheels are built for performance. Machined from the highest quality 6061 T6 or 2024 T3 aluminum, each flywheel is manufactured to deliver optimum tensile strength, heat dissipation and weight reduction, without going too light and causing poor idle and driving issues like some of the ultra-lightweight competitors. We aren't always the lightest, but we are the best!Flywheel-Al PC F1