Tape/bit of string from post saddle interface to hand position on current bars = 80cm or whatever.
You know the spec of the new bars/frame - rake rise etc, you know what stem you need to get the hand position in the same place, near as dammit. If you have the new bars already, and a friend to hold them for you while you offer them up to the tape, it's even easier.
Tape/bit of string from post saddle interface to hand position on current bars = 80cm or whatever.
You know the spec of the new bars/frame - rake rise etc, you know what stem you need to get the hand position in the same place, near as dammit. If you have the new bars already, and a friend to hold them for you while you offer them up to the tape, it's even easier.