Hitch insert fits either 1-1/4" or 2" receiver hitches Carry arm spacing on hitch mount bike rack accommodates a wide range of frame sizes and designs A patented tie-down cradle system individually secures and protects bicycles Carry arms fold out of the way when not in use The rack tilts back for easy lift-gate access No-wobble bolt eliminates movement of rack inside of hitch All retainer clips are attached with lanyards to prevent lost parts Black powder-coated finish Minor assembly required