Incredibly compact, this rack uses our patented technology to carry mountain bikes in a fantastically efficient way. When not in use the rack folds up and out of the way. Adjustable in height, layback and setback it will fit virtually any vehicle, right out of the box. Maximum weight is 200lbs and for 2” receiver hitches only (anti-slope device included to eliminate hitch play). As an added safety feature the NSR 4-bike rack will not block the brake lights on most vehicles. Something to consider with your expensive bikes behind. Easily the most compact and simple to use 4-bike rack in the industry. Note: not intended for road bikes: check with hitch manufacturer for compatibility (class II or higher). Includes a heavy duty lockable anti-rattle hitch pin (compatible with most 1/4" padlocks).