Easily one of the best selling rack systems ever, Road Runners hold three (HR300 series) or four (HR400 series) bikes tight with an anti-sway tiedown bar. The loaded rack tilts for cargo area access, and the arms and bar fold when not in use. Our No-Wobble system eliminates slack between receiver hitch and rack; the system includes 8' security cable and two keyed-alike padlocks. Available for 1-1-4 & 2" receiver hitch; 2" extension for SUVs with external spare tire available