Fits 2013 Arctic Cat TZ1 Standard Bottom Gear, br> RAD Powersportss, ISO 9902 certified facility using the latest technology, Made with heat treated, case hardened machine steel, High quality construction means gears have proper fitment and maximum efficiency, Lightweight with superior strength, Order chain width to match sprocket width, Available in 11 wide and 13 wide RAD Powersportss ISO 9902 certified facility using the latest technology Made with heat-treated, case-hardened machine steel High-quality construction means gears have proper fitment and maximum efficiency Lightweight with superior strength Order chain width to match sprocket width Available in 11 wide and 13 wide.