【T-6061 Billet Aluminum】CNC machined from a whole billet aluminum. Extremely light weight, adding almost no weight to the crank, which is important for balance.
【Rust-proof】The surface is anodized to ensure that it will not rust easily even under extreme conditions.
【Fixed Crank Hub】Relieves engine crankshaft hub rotation problems to some extent and suppresses vibration.
【Effectively Protect the Engine】Quite an insurance policy for your engine, saving it in the event of a belt or pulley breakage.