Current Projects chat and miscellany

It's a well proven fact that every 1.76mm of tyre to fork gap reduces your speed by exactly 2mph for any given power applied. Tyre to downtube is 1.5mph per 2.3mm. So you can see just how important this is to anyone wanting to keep their calorie burn down on their ride home. Saves £££ in pasta over the years.

have you any proper data for this? not trying to disprove you but i want something to show people when i say i can ride quicker on my fixed gear than on my roadie