I've got 700x28 wheels, and am looking for spare inner tubes. I'm looking at ones that range from 25-32mm, and ones that range from 28-47mm.
I assume the ones rated for up to 47mm will be slightly thicker, and therefore should protect against flats more than the smaller one (assuming use in a 28mm tire).
Will the added weight from the slightly heavier tube be noticeable, either during acceleration or braking? I'm not riding at breakneck speeds here, but I'm working up my Strava leaderboards...
