Love this thing. If it takes more than 20 seconds to put your bike on top and 10 seconds to take it off then you are doing something wrong. Super convenient compared to taking a tire off. Very solid clamping system holds the bike in place,seems good to go even on the highway. Tire clamp adapters allow it to fit both mountain and road tires solidly. Fits well on yakima bars on a subaru, have not tried it on any stock rack.