From mud holes to rocky trails to hill cimbs to desert treks, Dayco hpx ATV & UTV belts deliver uparalleled response. constructed with extra strong aramid cord reinforcement and fiber-loaded ploychloroprene compounding, this belt delivers the muscle and durability demanded by today's high preformance engines and the high preformance enthusiasts who drive them. Tested under sever field conditions, the Dayco HPX ATV belt has been proven to run cooler and provide longer belt life than competitive belts.