Rating: - fiddly to say the least
I found this awful -i eventually gave up on it as it far too fiddly.I want a pump that goes on easily,secures then pumps-this only thie first.Buy something else which i did.
Rating: - good piece of kit
can be a bit fiddly to start with but once you have your valve make sussed its superb. iam not a pro cyclist or any place near it but this is quality buy it