Most helpful critical review
2 of 2 people found the following review helpful
Not very well designed
on 18 May 2013
This presta valve flexible hose cycle pump adaptor doesn't really work very well. Instead of simply screwing on fully as it should, it relies partly on a rubber O-ring in the tip that fits over the valve. Tighten too much & it depresses the valve so you just pump the same air in & out without inflating tyre, tighten too little and it pops off as soon as you get enough air in to provide some back pressure. It's possible, but difficult, to get it just in between so that the tyre can be inflated fully.