|Bottom bracket drop||Gripfer|
Nov 24, 2003 10:39 PM
|What is it? How do you measure it?
|BB drop................||Mike Tea|
Nov 25, 2003 2:49 AM
|.....is the vertical distance between a horizontal line drawn from axle to axle and the center of the BB shell.
It's a framebuilder's measurement which results in the more familiar "BB Height". But as BB height itself is dependant on tire depth this measurement is of little use to a framebuilder.