Prestacycle redesigned the Head and Washer fit onto bike wheels easier with more room. Prestacycle's new Quick-Click2 design engages the Presta valve just below the cap threads. The head is very easy to get on and off, and gives a nice “click” feeling when it’s installed in the right position.
Safe for all types of Presta valves, including tubeless and tubeless-conversion valves. Will not harm newer lightweight performance valves. Fits Quick-Click2 Prestaflator Push/pull Presta heads. Does NOT fit other brands of Disc Wheel heads.