Originally Posted by
Dave Mayer
Old Shimano road (10 speed and earlier) was 1.67.
Exception: Tiagra 10 speed has the same actuation ratio as 11-speed . Which is not 1.4 as indicated by some on this Forum. I measured: it is closer to 1.5.
Right, 10 speed road shifters have a 1.67 pull ratio. But I'm looking for a flat bar shifter.
Even at 1.5, I guess Tiagra is still too far from 1.67, which is what I need. So I guess I'll just try to find a 9 speed cassette and a 9 speed shifter.