My 97 Harley was converted into a Trike in 2008 and it weighs right at 1100 pounds empty. It also sits pretty low, the frame is only about 3-4 inch off of the ground. It goes right up the ramp with no problems.
When it comes time to back your bike out and down the ramp, leave the engine off and put the trans in First Gear. This way you can use the Clutch as a back break while going down the ramp. You may find that the front tire will slide a little when applying the brake so used the clutch to keep the speed down and once down and off of the ramp, crack her up and hit the road. I have used this method for many years when unloading from trailers and pickup trucks.
