"The Black Widow 89"" L x 11.25"" W single motorcycle ramp is constructed from high-quality, rust-resistant aluminum. 0.5"" Diameter serrated cross bars provide increased stability and superior traction in rain, snow or mud. Lightweight and easy to operate, the ramp folds in half to make storage and transportation a breeze. This heavy-duty single-runner motorcycle ramp features a solid .5"" thick plate that supports the unit on the vehicle. For added security, this arched aluminum ramp includes an adjustable safety strap to prevent kicking out during loading and a tapered bottom edge for an easier approach. We recommend always loading motorcycles with at least two people when using single motorcycle ramps. These single ramps are not designed for riding your motorcycle up because they are not wide enough to put your feet down when loading and unloading."