Originally Posted by
70sSanO
If you are using a road FD, you’ll need a road compatible shifter. I think you can fudge with a mtb shifter because I think it pulls more cable. The cable will have to have some slack.
The easier approach is to use a thumb shifter. This is what I’m using on a flat bar 2x7. With a 2x, there really isn’t any advantage indexing as the lever moves one way to shift up and the other to shift down.
John
up through 9 speeds, the RD pull ratios are the same between road and MTB groups.
The FD pull ratios are different. But back in the 7 speed era, Shimano typically used a friction shifter on the left. Only the right shifter had indexing. Like these Deore shifters:
These should work fine for the OP