I have both a Road Morph G and a Road MorphMini. The Mini does work, and can be counted on to get you up to 100 psi. It is a little slower than the full size Morph, and the hose is shorter so you do have to hold your bike up with the valve stem close to the ground while inflating. For those of us who are non-dancers, that is a little awkward. I got the Mini because I wanted to move my pump to my seat tube and the full size Road Morph wouldn't fit on my small frame. I did have an issue with the rubber gasket on the plunger of the Mini coming off. Very discouraging to have a pump fail on a ride. However, Topeak took it in and rehabbed it. It has not given me any problems since. My advice would be to get the full sized Road Morph. It's speed and relative ease of use more than make up for the slight weight penalty.