Expand mesh and sheet metal or just expanded mesh? A lot of ramps out there only use expanded mesh by itself. While it is cheaper, lighter and tows a lot better that a ramp that uses sheet metal as well as expanded mesh. It can cause handling issues for the rider. Ramps with only expanded mesh, flex to much which effects the consistency of the ramp and more importantly the larger gauge mesh required to account for this will actually grab the knobleys and can pull the bike to the side if the foot pegs aren’t weighted evenly or the rider is carving for a whip.