J Jacob M Guest Nov 19, 2008 #1 Every time i pump up the tyres on my road bike the valve snaps off as i take the pump off meaning all the air rushes out and cant be pumped up again. Why does it do this?? and what can i do to prevent it
Every time i pump up the tyres on my road bike the valve snaps off as i take the pump off meaning all the air rushes out and cant be pumped up again. Why does it do this?? and what can i do to prevent it