Thrashed Outer Ring on XTR M951, Replacement Options???

[jimtc89]

I am a nube to maintaining my MTB and have a XTR M951 Crankset with 46-34-24 rings and the outer ring have a few missing teeth. As is, it performs fine with only an occasional misfire and was wondering if I can just replace the outer ring or if I need to just buy a new crankset (ouch). If I can just replace the outer ring where do I get the part? Shimano, Ebay, Rock and Road? If I do need to replace the crankset I see some on ebay and was wondering if buying used stuff on ebay is too much of a gamble.

Jim

[2wheel_lee]

Here's the challenge. The 951 cranks came with a couple chainring configurations: with a one piece chainring and spider (all have the middle ring mounting to it with four bolts - see the photo below) and there was a version that the outer chainring mounts to the spider (with five bolts).

If you have the one-piece chainring, good luck finding one in stock somewhere. Back when they were available, they were $100+. Hopefully you can find one on closeout. The ad where I found this photo, the middle ring is $79! They don't have the big ring. Unless you can find a good one for a good price, you may be better off getting new cranks or a buy a spider (The Path has some) and then a chainring (or rings, if you can only get one in a five bolt pattern).

If you have a five bolt removable chainring, your options are wide open to use any aftermarket chainring of the same bolt pattern. This will run you about $40 or so.

[Danimal]

If your interested in changing to an XTR 952 crankset, I have a set with a virtually new Bottom Bracket ( mabe 5 rides). Same gear ratio as the 951.
Very good condition, I'm willing to sell it....

[jimtc89]

Well guess what I have the 4 bolt pattern so I guess i should start looking for a a new set.

[jeffj]

Says it's for a 952, but looks just like the one pictured:

http://www.jensonusa.com/store/produ...Chainring.aspx

Cambria has 'em too.

[2wheel_lee]

Originally Posted by jeffj

Says it's for a 952, but looks just like the one pictured:

http://www.jensonusa.com/store/product/CG309Z00-Shimano+Xtr+M952+Outer+Chainring.aspx

Cambria has 'em too.

The one from Jenson will work. I pulled the photo from Cambria's site, and at that time, they only offered the small and middle ring.