XS821 - DESIGNED FOR ALL SKI-DOO & LYNX 850 and 600 E-TEC, 600 EFI, 900 ACE/ACE TURBO/ACE TURBO R. *DOES NOT WORK WITH 600 ACE MOTORS*
XS801 - DESIGNED FOR ALL POLARIS 650, 850 & S4. *DOES NOT WORK WITH RMK AND 550 MODELS*
Peak power, peak efficiency. For screamin’ hi-performance on the track or on the trail. Ultimax XS is designed for high horsepower sleds delivering superior performance and longer belt life. Ultimax XS features a specially formulated rubber compound found in no other snowmobile belt.
Ultimax Belts are built for high-power snowmobiles, offering greater durability and resistance to flex cracks. Trusted by top racers, these belts perform reliably under extreme power and temperatures, backed by decades of expertise in high-performance CVT drives.
Materials and Manufacturing
- Proprietary high-temperature rubber compound withstands the power of today’s biggest sleds without sacrificing grip
- Strong and stable aramid cord for zero stretch and maximum tensile strength
- Built with modern methods to reduce variability and eliminate “classic” failure modes