So easy, my kids can do it.
I'm converted, these are the solution, down with presta. This is the best solution for valves I have used. I can't wait for the future where clik is the standard bikes come with.
Not having to unscrew and re close presta valves is surprisingly nice. Also, the caps of the clik valve pull straight off and push on. No unscrewing and re **** there. Putting the air chuck on and pumping is straightforward. Very happy with mine.
I've installed the Clik valve cores on 2 bikes, and it is a big improvement over Presta. Not having to unscrew the stem each time saves a bit of time and annoyance. And with Presta the stems were always getting bent or stuck. Clik avoids these issues. In addtion to the valve cores I got three of the adapters, so I could keep one on my floor pump and keep one on each mini pump that I carry with the bike. The one thing I didn't like is that I had to buy they small wrenches for the valve cores separately, I wish they had included one of these with each set of cores.
I always hated the fact that Presta valves would bend and fail so often. I didn't know that it was a problem until I learned about Clik valves. It's about time the simple valve evolved. For all the "hold-outs" step forward and try it out. You might be surprised how well these work and simple they are.