Stealth Hitch Four Bike Carrier 2" Receiver Bike support arms easily fold down parallel with the main frame when not in use. Main Frame folds down 45 degrees for easy access to trunk lid or SUV door. Lower Bike Stabilizer Bar stops bikes from swinging and scratching each other (Folds up when not in use) Secure, functional frame-holders for up to four bikes. Maximum Capacity = 110 lbs / 50 kg