I remember the first time I took off my rear tire and saw the back end jump up 3-4 inches. Not a pleasent experience. Straps help, but can get in the way. Glider suggested I buy myself a cheap scissor jack as added support and thats what I did. When I lift my bike, I make sure the front end goes up 2-3 inches first, then use the scissor jack on the rear control arms to level it out. The bike is now very stable when elevated . I just have to remember to remove it when I lower the main lift.