Bottom bracket drop
Join Date Nov Posts 1, The way I like to think about it is drop is a frame dimension and height is a bike dimension. A secondary consideration was pedal clearance in the corners. Height is what is achieved when the bike is all built Bottom bracket drop and ready to ride. Once a frame is built this measurement is fixed and never varies, therefore it is the most accurate. No Problem Chasing Charlie Time machine: You're trading Bottom bracket drop for clearance.