The E-SPEC is a hitch-mounted platform rack that is RV Approved and designed especially to carry heavier ebikes. It can be used on RVs and Motorhomes (with the provided RV bolt) as well as cars and trucks. It carries one or two bikes weighing up to 80 lbs each while installed on regular vehicles. It carries one or two bikes weighing up to 70 lbs per bike while installed on RV Trailers. It fits most frame sizes and shapes and accommodates tires up to 5” wide and wheels that are 20” to 29” in diameter. A locking threaded hitch pin secures the rack to your vehicle while the locking ratchet hooks lock your precious bikes to the rack.