hookooekoo
Senior Retro Guru
No. Sorry. I haven't looked at M900 shifters. In any case, I only documented the right hand shifter, but if I recall correctly the left hand shifter has slightly different internals.
Here's a few tips:
1. If you have a helmet or body cam, record the disassembly process so that you've got a record of how it all goes together. And lay all the parts out in order in neat rows.
2. Many parts are handed, and only fit one way around/up. Lay all the parts down the same way up as they came off the shifter. Don't rotate or flip them over.
3. Use a tray to contain loose parts. I find the cardboard trays that tins are packed on at supermarkets are good for containing parts, grease and dirt.
4. On the ST-M095, the nut holding the shifter assembly together is a left hand thread (clockwise to loosen). The M900 might be the same, so don't apply a huge amount of torque to loosen the nut unless you're absolutely sure that you know what the thread direction is.
