Hitch insert fits American Style 1 1/4 in. or 2 in. square-opening receiver hitches. Easy load 2-bike rack fits bike with wheels 26-29" (up to 40 lb per bicycle), and a tire width up to 3.5". Carries bikes with wheelbase of 35-48" Locking, quick-install hitch insert, and locking bicycle hold-downs deliver security for your rack and bicycles. Includes two keys. Tilts back for easy lift-gate access, and folds up against vehicle when not in use Lightweight steel and aluminum design weighs approximately 14,5KG