Christoph2.8i
Dirt Disciple
Thank you all for the advice and guidance I think I have smaller range 9 speed cassette knocking around somewhere so I’ll swap it over. Thanks
There were a few SS M952 mechs made by Shimano mechanics which used the SS Dura Ace cage. I made one myself at the time to run on the M1 but mostly it was GS I ran. SGS was way too long for DH bikes. From memory the M950 long cage sat somewhere between a traditional Medium and Long, and the short cage somewhere between short and medium.I'm running a mid cage XTR on my 1500W (converted 2004 Gary Fisher Solstice) Ebike. So it's been thoroughly tested. 11-40t cassette.
To do this a longer B screw is needed. Chain length must be just right. Too short and the extra loop on the derailleur cage can get stuck behind the cassette. I linked to a video of it running in the DX thread mentioned above. So 36t shouldn't be a problem.
Your calling it a "short cage" in MTB that usually means mid cage GS, not the road SS cage.But in a 1x situaion 40t has been done with Shimano Zee M640, and Saint M800 both of which did actually come in SS cage for DH racers. My XTR is a lsightly different version than yours.
4t on the cassette = 1 more link needed on the chain (2 teeth)
I've just had the exact opposite issue with the XTR M952 short cage.
I was running 9sp 11t to 34t at the back and 26t 36t 46t at the front, all was gravy, then i swapped the chainrings for 27t 36t 49t and everything at the small end of the cassette would cause the mech to fold over on itself to such an extent, the chain would rub the cage, both above and below, i tried every adjustment inc a new chain which i cut to different lengths, the only thing which sorted it was swapping the GS cage for an SGS cage.
https://www.retrobike.co.uk/threads/xtr-m952-sgs-rear-derailleur-long-cage-only.483497/