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GX390 Adjustable Hub Flywheel the ARC Billet Flywheels are CNC machined from 6061 T-6 Aluminum. It weighs 5.40 lbs. The main feature of this design is the steel crankshaft hub that allows for timing changes at 2° increments. ARC flywheels use a Neodymium (rare earth) magnet which is the most powerful magnet on the market. Uses stock Honda coil. Has adjustable timing. Fits Electric Start Motors only - Will not work with stock Recoil.
(Note: Use this flywheel, and old-style coil to defeat REV limited on UT2 Motors (old style coil required on UT2 motors)