i have a presta tyre on a Giant hybrid bike, im trying to pump it using a schrader pump and a schrader/woods valve adapter i bought from halfords. its a gold-coloured thimble which i have screwed over the valve (am i supposed to tighten or loosen the tiny little knurled collar sticking out of the valve end?)
i need to pump really fast to overcome the release of air that occurs after a few pumps of air. would another adapter help matters? thx for any help.