Tag: Gunnar Crosshairs

I haven’t had very good luck with small/mini/micro pumps.  I’ve had some that worked marginally, and the rest have been literally useless.  I also have some CO2 cartridges and valve, which work, but are wasteful, expensive, and rattle around in my jersey pockets. Below is a Park Tool PMP-5, an adjustable frame pump that fits a range of frame…