Wider tires are still slower BEYOND A CERTAIN SPEED as drag increases. Furthermore tire rolling resistance test are done on a bumpy surface, and 25 mm tires > 28 mm.
>tire rolling resistance test are done on a bumpy surface
Which ones are? The ones at bicyclerollingresistance.com aren't road-like-bumpy at least, and that's the most commonly cited page I know of for rolling resistance.
Which ones are? The ones at bicyclerollingresistance.com aren't road-like-bumpy at least, and that's the most commonly cited page I know of for rolling resistance.