2012-2013 Polaris Ranger RZR XP 900 Drive Belt Dayco XTX ATV OEM Upgrade Replacement Transmission Belts The Dayco XTX belt is built for the most extreme machines. Engineered for monster vehicles powered by 800cc, 900cc, 1000cc and even larger engines. Specially-formulated high temperature Neoprene with the highest level of Aramid fiber loading available delivers track-churning performance for the most aggressive riders. An innovative break-through design features deeper cogs on top and rounded cogs on the bottom for ultimate flexibility and longer belt life. Tested and proven reliable at well over 12,000 RPM. Direct OEM belt replacementmeans zero clutch/variator spring or fly-weight adjustment required at installation.