The Pilot HM4 is a four bike, hitch style platform carrier for 2" hitch receivers only. This modular carrier can be used as either a two or four bike rack. This flexible design with expansion capability makes the Pilot HM4 a great choice for changing needs. Cross-town transport to the trails or loaded up for a road trip, the Pilot HM4 provides safe and confident transportation. Constructed of powder coated steel, this bike rack requires a 2" receiver. The padded ratchet arms hold the bikes securely by the front wheel. Ideal for carbon framed, full suspension, and fat tire bikes. Lifetime Limited Warranty. Some assembly required. Features: ·Semi-retracting key lock security cable. Specifications: ·Modular two or four bike capacity. ·Load Capacity: 33 lb per bike x (2 or 4) bikes ·This bike rack is not intended for transporting tandem or recumbent bicycles. ·Product Weight: 85 lbs ·Dimensions: 47" x 63" x 14" ·Lifetime Limited Warranty Installation: ·Please review instructions prior to assembly and register your warranty prior to first time use. ·Note: Not compatible with tandem, recumbent or electric bikes. What's In The Box: ·Multi-Boxed Item - Includes 2 Cartons ·(1) 2.00" Receiver Mast ·(4) Ratchet Arm Assemblies with locking cables/keys ·(1) Steel Chassis with Removable End Cap ·(8) Wheel Cradles with TPU straps ·(1) Hardware Kit ·(1) Anti-wobble Locking Hitch Pin ·(4) Keys for Rack ·(2) Keys for Locking Hitch Pin ·(1) Instruction Manual .