Very good question. From what I've seen in videos, a lot of them use the Topeak Digital one, I have one and it's worked well for years, but only does full PSI, so have to guess if you want in between - want 12.5 PSI, then take it to 13 and bleed it out till it falls just under and guess from there :-\
Jan. 22, 2019, 5:12 a.m. - MountainBikeBarbados .
Very good question. From what I've seen in videos, a lot of them use the Topeak Digital one, I have one and it's worked well for years, but only does full PSI, so have to guess if you want in between - want 12.5 PSI, then take it to 13 and bleed it out till it falls just under and guess from there :-\