Avid 8" heavy Duty Idler Wheel
These will improve efficiency allowing your track to rotate easier and they are extremely durable. Specify either 20mm (.75") or 25mm (1") shaft. These light weight 8 inch idlers come with a premium 6205 or 6304 Bearing. Larger bearings mean longer life and are stronger. The balls in the bearing are larger and will spin slower compared to a smaller bearing thus creating a longer life expectancy. These will fit Polaris, Yamaha, Arctic Cat, and Ski Doo.