You might think the bike would be wobbly while on the SnapJack, but it's actually remarkably stable. The clawed foot pivots, as does the upper cradle, permitting the SnapJack to be used on a variety of swingarm styles. Really steep swingarms, ABS sensors, and rear-caliper brackets can make the SnapJack impossible or tricky to use, but it worked on nine out of the 10 bikes I tried it on in the MC garage. The SnapJack comes with two thick rubber pads to use under the tool's foot and the bike's sidestand when using the SnapJack on smooth or painted surfaces. They work all right, but the SnapJack (and the bike's front tire and sidestand) has much better purchase on good ol' asphalt.