Harden Lightening Crankshaft Pulley is different with others Aluminium crank pulley. It is using 6061 Aluminium and over-coating a harden layer. This harden effect will protect the pulley and become wear-resisting.The latest technology that we can let the harden effect to become coloured. NEW Diamond coat will last longer than Golden Harden more then 30%.
Increase more power. Increase fast rev and RPM, Increase fast response. Increase more horsepower at the wheels. Good use for daily & street performance. Better torque, and fuel economy. Super light weight made from T6061 aluminium. Diamond Coated to increase hardness Reduced engine load allow more power transfer to transmission.