Ultimax UA ATV/UTV Belt UA416 Ultimax ATV UA belt is designed for its specific application. Proudly made in the USA, the Ultimax family includes Ultimax MAX, Ultimax PRO and Ultimax XS snowmobile drive belts; Ultimax HQ, Ultimax UA and Ultimax XP drive belts for ATVs, UTVs and SxSs; and Ultimax MD (Multi-Duty) belts.S.