Originally Posted by
cocoarmadillo
The Nitto would indeed be a safer bet, but it's totally out of my price range. I was measuring from the center of the post to the center of the clamp. As for the saddle, the B17S is a women-specific version of the classic B17. It's a few inches shorter in the nose and roughly the same width.
Ok. Are you measuring perpendicular to the axis of the seat post, or horizontal (parallel with the ground)? It will make a difference.
If you don't need the short nose of the B17s, I agree with Fiets, that the Selle Anatomica would help you get adequate setback without a change of seatpost, or dinking around with getting the measurement techniques synced up.
If I measure perpendicular to the seat tube on the S-84 I get 37 mm. Same measurement on a Thomson with setback (they do it with a bent main tube) gets about 18 mm.