Zefal Sport G High Pressure Bicycle Floor Pump (Z-Switch Technology)

from ZefalHater

Piece of crap! Dont buy this worthless bicycle pump for any reason- it simply doesnt stay locked on the valve! Zero stars is more appropriate!

from Matt

5 pumps and handle busted in half. Junk!

from Jason

Worst pump I've ever used. Locking mechanism seems to do nothing. It won't seal on a presta valve tight enough to get past 30PSI. Can't work around this with a Schrader adapter that works on another pump--the "locked" valve just blows off when pressure builds up a little. Unsure if gauge even wo...

from Joefiss

This didn't work st all! My gauge shot straight up to 80 psi, and at that pressure my tires would have been rock solid but they are bellying out as soon as I get on it. So this thing is a waste of money. Will be retiring it tomorrow morning to get the old standard bike pump from Bell that I'm use...

from Abraham

I bought this one last and night and I'm returning it now, it didn't work and the guage is useless! I kept pumping and it will not inflate my road bike tire. the guage is just there to make it look good since it doesn't work! invest your money in another pump