A Zefal floor pump banner advert just popped up on CT claiming+/-1% accuracy (Zefal Profil Max FP65). This is a surprise because almost every floor pump, except for Silca, has a gauge that comes from the same OEM supplier in China that would be lucky to be accurate within 10%. Dave Rome is my source for this IIRC.
I don’t care about this on the roadie, but it matters big time on the MTB and CX because pressures are much more relevant, where I use a Fumpa electric pump which balances super accuracy with a super annoying sound.
Anyone tested the Zefal?