Billet aluminum pulleys
BOLT-ON for 2003-2017 Vipers
Type III black anodized aluminum
Underdrive Crank Pulley - Reduces weight and gains power by slowing the accessories 25% vs the OEM steel pulleys. Track proven design with no battery or other reliability issues. Helps to prevent collapse of coolant hose. Complete kit includes all bolts and belts. Has a replaceable bearing
Idler Pulley - Replaces factory steel pulley and has a replaceable bearing, Bearing is an upgraded stainless steel sealed bearing with stainless retaining pin.
Tensioner Pulley - Replaces factory plastic tensioner and has a replaceable bearing. Bearing is an upgraded stainless steel sealed bearing with stainless retaining pin.