This Park Tool model is one of the big daddies of the portable pump world. It’s a hefty 48cm long and weighs 261g – but that extra size does bring with it some advantages, notably a 21cm stroke that will help get your pressure up in less time than most smaller pumps take.
The Dial Adjust’s ergonomics are pretty good, too, the handle opening out into a T-shape that enables you to get a very good grip. Unlike some frame-fitting pumps, this is a one-size-fits-all affair, a series of nine notches in the handle enabling the spring at the other end to keep it in place.
We got to a healthy 70psi after 200 strokes, and because of its size this has lots more to give. The long shaft is only 8mm in diameter, so given the length of the stroke you do need to pump carefully so as not to put too much pressure on it, but overall the plastic and metal construction feels pretty tough.