Ultimax XP Drive Belt Polaris RZR Pro R / Pro R 4 The Ultimax XP Drive Belt is engineered for extreme performance, designed to meet the demands of high-powered UTV and side-by-side vehicles. It stands as a severe duty belt that excels in strength, reliability, and longevity. This belt is crafted with specially formulated, heat-resistant polymers tailored for each application, ensuring peak performance under the most demanding conditions. Features: Engineered for a specific application to handle heat, load and abuse Purpose-built to handle the unique demands of harsh CVT environments Constructed with specially formulated advanced polymer compounds Dimensions match OE in cord length and width Fiber-loaded rubber is designed to grip the clutches throughout the life of the belt Made with strong and stable aramid cord for superior resistance to shock loads Extensive lab and field testing under extreme conditions assure performance and long belt life Tenacious gripping power during the highest levels of torque Quick and consistent throttle response Robust acceleration at high RPM Replaces OEM part number: 3211226