The IBF bi-folding series of ramps fold to half their width and can be deployed in seconds. There are currently 2 styles available. The IBF-7144 is a 71 long by 44 wide lightweight bi-fold ramp with serrated circular cross bar rungs and rubber fingers.
The IBF-7148 is 71 long and 48 wide for loading wider Atvs. It folds in half and has a light weight square bar cross rung design.