Shown above are a pair of our ramps with a huge full size farm quad bike and rider. These ramps weigh more than others due to the thicker gauge alloy used throughout, making them strong enough to easily handle the weight of a farm quad that just barely fits in the back of a ute! Material: Grade 6061 Aluminium Alloy. This alloy has a high tensile strength and low fatigue which is used in the manufacture of aircraft wings and fuselages. No dangerous support legs: We strongly advise against the use of ramps with middle support legs. After the weight is transferred to the upper section of the ramp the load is taken off the ramp where it contacts the ground. This removes the stability provided by triangulation and allows the ramp to easily be thrown backward off the trailer (even with support straps) which will result in the bike and rider falling backwards with the front wheels still in the trailer! Our ramps are designed to keep the load on each end only, ensuring high stability through triangulation.