I have that bike pump and it's marginally useless for anything other than getting barely enough air in the tires to make the limp back home. Yes, I suppose one could get 120 psi using that tiny thing, but it's a monstrous pain to do so, not to mention unless you have a tree or rock handy, very difficult to brace the wheel as the bars build up. I've torn my fair share of valve stems when fixing flats on the road.