I need to pump up the tyres on my bike but I just don't seem to be getting anywhere. I have a dual piston pump (Crank Brothers) and am using the correct valve attachment. I just don't seem to be attaching the valve properly. (The presta valve on my old bike was so much easier!) I tried to have a go on my good tyre but within 5 seconds of attaching the pump head I'd managed to empty all of the air
Am I pushing the pump too far onto the valve? Or not far enough?
Steve Bauer Whirlwind, Nishiki International, Rocky Mountain Element 30 1984 Cinelli Super Corsa w/Campy 50th, Surly LHT.
Most Schraeder heads have a locking mechanism which clamps down on the valve. It's usually a lever of some sort. Place the head on only far enough to hear some air starting to escape, then engage the lock. Good luck