11-28s are gappy as shit.
fine if you live somewhere hilly, but as soon as you go somewhere flat and ride into headwinds for a bit you’ll instantly start finding ‘missing’ gears.
or at least i did.
grrrr.
i say if you’re managing on 39/25 then go for the 52/38 and keep the 11-25 out back.
EDIT: baws i’m talking 10spd and you’re talking 11. i still reckon 11-28 would be gappy, but haven’t looked at the ratios.