Originally Posted by southpawboston

i didn't have the time to do an accurate ground to BB measurement since i don't have an even floor and i'd have to do a wheel mockup on the frame. i strung a string tautly between the F/R dropouts with the fork centered, with the string centered at the height of the axle center. then i measured the vertical distance from the string to the BB center. i thought this is what is referred to as BB drop?