iandriver wrote:Got one of those also. Has an annoying habit of unscrewing the valve core. Now I've thread locked them in, not such a problem. Does a wonderful job now. Mine is a few years old and din't have the other attachment noted in your link. Wonder if they've updated it.
Many of the reviews of the 'Speed Chuck' on Wiggle are negative, especially if high pressure tyres are involved.
The 'Flip Chuck' supplied with the pumps has a button to release the pressure in the pump/above the valve, which is supposed to reduce the risk of the valve core unscrewing. However, if you are not using a tubeless set up, the simplest solution is to choose inner tubes without a removable core, e.g. Michelin.