Made to fit Sea Sucker's Bomber and Mini Bomber bike racks, just swap the Add-On Front Wheel Holder for one of the fork mounts, and now your front wheel doesn't have to ride in the trunk anymore. Elongated entry slots for the skewer allow the wheel to rest on the platform of the rack, providing additional stability when driving. Features: Fits up to 29 wheels. Made from 1/4 powder-coated aluminum. NOTE: The wheel mount is currently incompatible with through-axle wheels, but SeaSucker's working on adapters.