i just measured my trail bike and it's 12.5". That seems awfully low compared to the other specs I've seen for bikes. My guess is that I measured it wrong. I measured from the floor to the very bottom of the bb shell. Is that right?
why do you care you got a foes mother f'n fly in my opinion the best xc-downhill bike in existance it can do everything short of road. does the geometry matter?
by the way the bb height on my large '05 fly with a 888 measures out to just between the two bigg scars on my right shin, the best for free-ride where as the left shin scars are downright cross-countryish.
for a truly accurate measurment you rely need to do it without tires as there height does affect the overall height of the bike.