ProCharger Premium 8-rib Pulley with Sur-Grip - 3.0" by 928 Motorsports The granular surface allows the rubber in the belt to "key" into the pulley, greatly increasing its tractive force. In addition to increasing the surface friction for the belts, it also increases the surface hardness of the material up to 72Rc, making the pulley itself more durable also. Lightly used. Includes few spacers and for offset as pictured. Sells for over $300 new!
