2008-2011 Polaris RZR/EFI ATV Drive Belt Each Belt is Crafted from Only the Best Rubber Compounds and Tough Aramax Cord Carlisle Belts Enhance the Efficiency of the Variable Speed Drive System Eliminates Excessive Friction and Tension Preventing Drive Damage Outer Circumference: 40-57/64" / Top Width: 1-10/64" Compatibility: 2008-2011 Polaris RZR/EFI