Moose Racing Sealed Chain Rollers Enhance your ride's performance with a Moose Racing sealed chain roller. Designed for those seeking a high-quality alternative to OEM parts without the hefty price tag. It's a practical solution for riders facing issues with their existing chain roller, providing durability and reliability on the track or trail. Features: Polyurethane roller with 98A durometer hardness for long life Precision contact sealed bearings keep water and dirt away Mounting hardware included Replacement OEM Numbers: 52175Krna90 52175Mena30 52176Men710 52176Mena30 90131Krn710