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!!