Teflon strips. Went to a garage sale a few years back and found a kid's "Flying Carpet". For those not in the snow belt its a roll up toboggan made of tough plastic. Paid 50 cents and got home and cut it into strips wide enough to go between the spring leaves. Obviously could not go too far into the space between the leaves even though the wheel was hanging. Works very well but after a few years and miles the strips work their way out sideways. I think if I did it again I would use those Teflon buttons.
