DAYCO HPX (High Performance Extreme) Snowmobile Belts...Featuring DAYCO's TOP COG design for increased flexibility and longer belt life, this high horsepower belt is constructed with over-sized p-aramid cords and CTV rubber compounding to deliver the increased strength and durability that's required to stand up to today's higher snowmobile engine RPM's and operating temperatures. Enjoy the exhilaration that comes from knowing that when you need to clutch-down the DAYCO HPX Snowmobile Belt will deliver a full range of power to attack any terrain without a loss of horsepower.