It allows you to adapt 12mm O2 sensors from late-model Harley-Davidson motorcycles to fit older exhaust systems designed for 18mm sensors

engineered for unmatched performance and style

Made from quality die-cast aluminum with form-fitted proprietary EPDM premium rubber compound

Shorter and narrower than stock and the front wheel is now shameless in full view

sw motech trax adv motorcycle top case Color:Silver It allows you to adaptSW Motech Trax ADV Motorcycle Top Case This top case gives you a solid storage setup for longer trips whether you're on the road or heading off it. Rigid aluminum construction with seals to keep your gear 100% protected from dust and water. It mounts to SW Motech luggage racks with the right adapter, and once its on, it stays secure and locked down. Combine it with the SW Motech Trax ADV side cases for a complete setup. Features: 38 L capacity Made