Unanswered Shimano XTR 9100 Compatibility?

[Thomas]

To answer my question, new XTR is unfortunately not backwards compatible with "old" 11 speed.
But I still wonder, could it be possible to use only the new set of brake calipers and Levers XTR BR-M9120 + BL-M9120?
On Shimano compatibility chart, only SL-M9100-I shifters are compatible with BL-M9100/9120 levers.

But there is no mentioning of new SL-M9100-R clamp shifter, that is also available.
SL-M9100-R

Does this mean, that old M9000 XTR Clamp shifter would be compatible with new lever?
On this picture then look basically the same.

If I'm seeing right, there is room between new brace and clamp for normal Clamp shifter, new or old?

Thanks for any help

 

[Muzza]

If it helps, I had similar issues with my new XT 8120 brake set. The old i-spec was not compatable with the new i-spec ev system.So I purchased the clamped 8000 11 speed shifter which proved to have plenty of room between the clamp & brace with a bit of wiggle room to have the shifter comfortable.
Included a photo.

 

[flash]

ISpecEV is VERY similar to Sram Matchmaker. You could try the Problem solver mismatch 2.2 adaptor with the 9100 brakes.

Gordon