Test: The Airace Infinity AS comes in a plain white look made of polished aluminium. With a weight of almost 2,5 kg, the pump appears robust and of high quality. The handle, which is completely covered with rubber, is also pleasing, which feels pleasant and doesn't leave your hands with an unpleasant smell of rubber.
As a special highlight, the Infinity AS offers a built-in pump for spring elements - what sounds like a small, useful gimmick has direct consequences for the pump itself. On the one hand, the pump head has an air release valve and a small additional hose for mounting on the damper or suspension fork appropriate. As a result, the pump head itself seems quite large and unwieldy - we sometimes had problems accommodating it on the valve on wheels with 32 or 36 spokes.
Since suspension elements are usually driven with much more pressure than tires, the pump has to be able to cope with high pressures and also show a wide range of pressures on the pressure gauge. The Infinity AS has no problem with the former: a maximum of 21 bar or 300 psi is impressive and also sufficient for 99% of the spring elements. The manometer, however, shows the difficulties of such a pump combination. Since the dial itself is already quite small, the large pressure area makes it extremely delicate. This is particularly problematic with lower pressures: In the mountain bike sector, pressures between 1 and 2 bar are often used - the dial is hardly legible in this area and only allows for estimates.
The pumping feeling of the Infinity AS knows how to convince across the board. The air piston slides up with almost no action and the operating forces are pleasingly low even at higher pressures. The damper pump also works perfectly. It only shows weaknesses with large-volume tires: A few more strokes are needed here than with the competition. The pump stands securely on the floor and the non-slip inserts on the foot effectively prevent slipping.
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