Originally Posted by
nlerner
With a little bit of filing, you can also install that shifter on the top tube, a la the quadrant style shifters:
Or you could mount it in front of the cable guides and have a Grand Spot.
Really, this concept goes back to the earlier days of British Club riding. It's much easier to source a more current frame, but there are plenty that would work just fine. Beyond that, it becomes a matter of aesthetics.