HIRO Side-Lever Locking Presta Chuck- Carbon Steel

The chuck itself is great, but there is a fundamental problem with the consistency of the internal rubber gasket, as I have had serious problems with two of them having larger than acceptable internal diameters allowing air to easily escape whilst pumping.

Design makes for a great fit on any presta valves.

This addition made the Silca charger purchase worthwhile as without it I found the charger diicult to use and more trouble than it was worth.