Originally Posted by
GhostRider62
Depends on the volume of the tire, pressure to be attained, and of course the pump.
700 x 35 to 70 psi takes over 400 strokes.
I am not aware of any mini pump that could reach pressure with 30-50. Maybe 150 is more like it for skinny tires.
There is a reason I don't put mountain bike tires on my road bike.
My latest mini-pump is a Crank Brothers pump. Is it already a couple of years out of date?
Dual head Presta/Schrader, twist top. Gauge (which I rarely use), and dual pressure/stroke volume with a twist of the bottom of the plunger.
It actually works pretty nice for putting in some air, then twist the end of the handle and top off the tire.
I always hold the pump head, and I never break a valve.