I've been using Shimano XTR cranks since my bike was assembled in 2002 (fc-m952?). I've replaced the rings a few times in the past (though not in several years) but it appears that these cranks were crafted in such a way as to preclude the use of off-the-shelf rings. As a result it seems to be rather difficult / impossible to find replacements anymore.
I'm in need of new rings again so it seems I have two choices:
- Replace the whole set
- Adapt using something like this - and replace with 'standard' rings
I don't know enough about bike parts and availability to make a clear decision.
I should note that the shifters are also XTR of the same era so any replacement rings would need to be compatible