I have a 1994 Bridgestone with 7x3 Shimano STX-SE components. My rear shifter stopped returning to the original position. I took it apart and found a broken piece inside. Iím pretty sure that broken piece is what is causing the problem. I found a shimano shifter on Amazon that looks like it would work. My questions are these:
1. Are all Shimano 7 speed shifters compatible with my bike? I donít want to change anything but the shifter.
2. Should I replace both the front and rear shifters? Or just the rear? Itís only about $8 price difference between the rear only and both front and rear.
Here is my original problem:
Here is what I plan to buy:
Any thoughts or advice? Iíve never done this repair before.