I have 3 Topeak road morphs, one older and two newer models. All work well. One is on my road bike, one on my commuter, and the third was to replace the older one but realized I just didn't need it. I've put the third on various other bikes at times. What surprised me is that when I went to use the one on my commuter (I've retired but still use this bike to get around) I had never changed it over to presta valves, which means I'd never gotten a flat in the three years I had it with me! Now of course I've jinxed it.