M9100 XTR Chainring on M8100 XT Crank (1x12)

PB Forum :: Shimano
M9100 XTR Chainring on M8100 XT Crank (1x12)
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Posted: Jan 24, 2020 at 9:47 Quote
Wondering if anyone can tell me if the M9100 XTR direct mount chainrings are compatible with the M8100 XT crankset.

I have the parts, they physically fit together, but on the direct mount lockring for the XT crank it specifically says "XT/SLX series only".

According to Shimanos documents the XTR crankset uses a different lockring than the XT... The XTR ring is compatible with the XT/SLX cranks, but the XT/SLX ring is not compatible with the XTR crankarms.

Anyone know what the difference between the two lockings is and does it effect what I'm trying to do?

Are the XTR and XT chainrings dimensionally the same?

Thanks in advance for any info on this, trying to make sure I have all the correct parts before I tear my bike apart.

Posted: Mar 22, 2020 at 17:07 Quote
Not sure about the lockring, but when GMBN reviewed it they stated that they will work together no problem.

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