Originally Posted by
Crankycrank
Never had a PV go bad but I rarely have an issue with any brand Presta valve. To the OP, maybe you don't need to get spares yet. If you already have some spare tubes just use the valve from one of them and when you toss an old tube, save the PV for spares. I'm a bit frugal that way but always have spares for friends and people who have destroyed. theirs on the side of the road with ham fisted pumping after a flat.
In the several Presta tubes I bought for Brompton, half of the valves leaked. Just in case, I replaced those cores that did not leak too, just in case, not wanting to wait for a mishap at an importunate moment. DO NOT reuse cores from tubes that ran their life course. The cores have rubber seals that deteriorate with time, just like any rubber.
Originally Posted by
stratman
Not sure about the Hiro head but
Hirame, of which Hiro seems to be a copy, is certainly great. It also comes in the
Schrader version which is a good investment too.