"The 48"" L x 57"" W HD Ramps Bi-Fold Aluminum Trailer Ramp is engineered to outperform bulky, rust-prone steel ramps for built-in reliability every time you load up. A weekend of trail riding, heading to the track, or bringing your ride with you on your next big trip no longer means having to remember and haul a separate set of ramps. This heavy-duty aluminum ramp makes loading and unloading effortless. The horizontal bi-fold design is half the height of similar one-piece factory steel ramps, which allows for less wind drag and better fuel mileage on long trips. This aluminum ramp supports up to 5,000 lbs. per axle, so that even heavier EV models can safely use it. The heavy-duty CNC-machined hinges easily mount on trailers and any similar flat deck set up. The 57"" width is designed for trailers up to 60"" W. This ramp folds up vertically when not in use and aluminum strut rods and bungee latches keep both folded sections firmly in place. For longer loads, the ramp can be folded flat directly on the trailer deck to allow the load to extend past the rear of the trailer."