Draw-Tite Tri-Fold Aluminum Ramp - OnSaleRamps.com
Does this ramp work for both? Motorcycle and ATV?

 

I prefer the longer curved ramps. I use two, both fold, and have nylon ties that bind them tight to the tail gate(the ties have hooks that connect to the bumper so you can cinch them tight). I added some no slip treads to mine because I walk the bike up(bike on one ramp, me on the other). I am getting ready to put very short sheet metal screws into mine for better traction. Get thebest you can afford, loading bikes in and out of pick-up beds can be extremely dangerous.

 

I have ramps almost exactly like those, and they work perfect. I ride the bike up and back it down walking on the other side. Mine are actually made for large quads, I think the limit is 1200 lbs. Mine only have small pencil sized cross members. But it works great. I would never attempt to ride my 1300 up them though, that's what the loading dock is for at work.