With mileage visible right on the hub, the Valcrum Hubodometer allows fleets to better manage maintenance intervals at the wheel end, track warranties, and assist with mileage cost validation. The measurment device mounts diretcly to Valcrum hubcaps and fits most 16-17.5" tires. Includes bracket, Torx screws, and L-key for quick installation. Comes with a 3-year/300,000-mile warranty.