Hollywood Racks T970 Fork Block 1 Bicycle Fork Mount Mounts to any solid surface, such as a truck tool box, trailer, or a home-made custom rack Uses 6061 aluminum body with heavy duty 9mm quick release skewer Fits front wheels 100mm O.L.D. (Over-Locknut-Dimension) Pre-assembled Lifetime against defects Allows secure transport or storage of 1 bike 9-mm skewer firmly grips bike's fork Heavy-duty base bolts to any solid surface Use in van or truck, on floor or wall Limited warranty against defects