Older XTR cranks - replace or adapt? 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. 

Suggestions?



EDIT:

I should note that the shifters are also XTR of the same era so any replacement rings would need to be compatible
The shifters+front derailleur don't care about the type of chain rings you're using (just that they're sized appropriately and you're running a double/triple as you were before).

On the one hand, the adapter you linked is about 75 dollars + the cost of regular rings (which should work fine). On the other hand, replacing the crankset means a new bottom bracket (octalink v1 isn't exactly popular anymore,but its not hard to find replacement octalink v1 bottom brackets) and a new crankset. 

I'd probably personally opt for the new crankset and BB, since I don't know about the reliability of these adapters and the price difference is pretty small (maybe 15 dollars). Plus, then, you don't risk someone putting a Octalink v2 BB on there some point and then ruining the crank.