Ultimate XS is designed for high horsepower sleds and delivers strength and dependability never before available Carlisle innovation provides superior performance & longer belt life unsurpassed by any competitive belt Ultimax XS has increased strength and is built with new heat tolerant materials With a revolutionary new compound, extra strong Aramax cord and new manufacturing processes the Ultimax XSruns cooler, longer and faster Extensive lab and field testing have proven that Ultimax XS can withstand the punishment that today"s super-sleds dish out Capture the power with belts by Carlisle Additonal Fitment:1999-1999 SKI DOO BRP FORMULA III 7001999-2001 SKI DOO BRP GRAND TOURING SE2000-2000 SKI DOO BRP FORMULA lll 7002001-2001 SKI DOO BRP MACH Z STANDARD1999-1999 SKI DOO BRP MACH I1999-2000 SKI DOO BRP GRAND TOURING 7002000-2000 SKI DOO BRP MACH 11999-2000 SKI DOO BRP FORMULA III 8002001-2003 SKI DOO BRP MACH Z TECH PLUS1999-2000 SKI DOO BRP MACH Z