Senior Member
My new bike has Presta? valves (the skinny ones) whereas my old bike had normal car-type valves for which I used a foot pump. Before I went out today on my bike I realised the tyres were a bit soft. Tried to pump them up with my little pump and failed miserably. Drove to the shops and bought a track pump. Tried with the track pump and failed miserably. Flagged down a passing cyclist and he succeeded eventually even though he had problems as well. Question is - is there a knack to fitting the pump correctly to the valve? Or do I just need to practise more? Or do I need to learn how to use a pump correctly? (I am a complete beginner!!) These skinny valves are a bit scary!!
you need to unscrew the screw thingie on the top of the valve first then put on the pump - a little different to schrader. This youtube clip should show you how


oh remember to screw the brass thing back in after inflation

Also here

Steve Austin

The Marmalade Kid
Presta valves often need to be tapped a little, till they release some air, be fore they will take any pumping.
Remove dust cap, unscrew little collar, press to releases a little air, press pump hard onto valve, pump. Remove pump, screw lintel collar, put dust cap back on. ride
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