![]() I could get the tire to about 75 psi but after this I didn’t have enough strength to get much more air in, I’m sure those with better pecs and biceps could manage better. ![]() With the technique dialled pumping was really easy and smooth, it took 120 pumps to get a tubeless 28 x 700cc tire to from flat to 65 psi (pressure measured with a digital pressure gauge). Generally it was much easier to get the right hold on the pump with the wheel out the bike. ![]() As the pump is pretty narrow this became a bit uncomfortable as the pressure got higher as all the force was concentrated on a small area. The body of pump is quite smooth despite the machining, so to get a better grip and more oomph behind my pumping I tended to move the end of the pump so it pushed into the palm of my hand. In test after test, though, this pump impressed. The head fits really firmly over the valve and was firmer than many I’ve used which have a lock (as it’s so tight you do need to be careful removing it so not to bend your valve).īecause the pump is so slim and head so small I found you have to be quite precise with your hold and used my fingers on the head rather than my whole hand. The Specialized Air Tool Pro took some time to warm up to, partially because its aluminum construction is literally cool to the touch (in the shade anyway).
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