wait wait wait...

i thought skinny tires were faster 'cause they have a smaller contact patch on the road. as well, they're more aero (or should be). why is a fatter tire faster, in that case, then?

when i went from a POS 1.25" tire to a POS 1.125" tire on my road bike, my speed increased!

on my POS FS mountain bike which weighed 40lbs and rode on 2.1" tires, i could average 25km/h on the road. now, on my 28lb fancy pants HT mountain bike with 2.35" tires, i can average about 19km/h on the road. i'm a stronger rider now than i was when i rode the POS FS mtb, too.