Made to fit our 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. Made for standard road, cross and MTB wheels. Requires the MTB Plugs to hold a 15/100mm or 15/110mm (Boost) through-axle. Made from .25″ powder-coated aluminum.