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PostPosted: Wed Jan 20, 2010 9:38 am 
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Joined: Tue Aug 05, 2008 11:23 am
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Location: West Sussex
Hmmmm, the PDF does imply that the spider is 'equal part' for the M952.


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PostPosted: Wed Jan 20, 2010 10:41 am 
retrobike rider
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Just a thought are you thinking of the M739 spider/ring 4-arm ? (and similar LX one with black ring)
http://www.paul-lange.de/search?Searcha ... st=neutral

Image


Hope you find out.


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PostPosted: Wed Jan 20, 2010 11:25 am 
retrobike rider
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Scott used the XT spider and rings on the XTR 952 cranks. This was because the swing arm on the Strike would only allow upto 44t outer rings. XTR was min 46t.
The 5 arm XT or XTR should fit, but will be atb pitch - 110, so 46/48 outer.
Not sure about the lx, might be a different thickness. :wink:


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PostPosted: Wed Jan 20, 2010 11:28 am 
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FluffyChicken wrote:
Just a thought are you thinking of the M739 spider/ring 4-arm ? (and similar LX one with black ring)
http://www.paul-lange.de/search?Searcha ... st=neutral

Image


Hope you find out.


The XT 739 and LX 561 chainset was also available with 5 arm spider. I don't think they'd fit as the crank arm has 4 'splines' that fit into the chainring (you can see them on the picture you posted.
I think my only option is XT 750.


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PostPosted: Mon Jan 25, 2010 4:08 pm 
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For future searches, looks like the following will work.

XT M750, 4 or 5 arm, (square taper only, the M571 Octalink won't work)
Middleburn for XTR M952 (obviously)
LX M570 4 or 5 arm

The LX is the cheapest option and is available new from cyclestore.co.uk
http://www.cyclestore.co.uk/productDeta ... ctID=16490


Lock-rings for Middleburn cranks also work for the XTR M952.

edit update: I got my spider and had to file some material from the edges of the channel where the crank arm sits. Fitted the spider and tightened the lockring. I fitted the XTR BB and torqued it to the correct value. Put the crank arm on and torqued the bolt to the lower of the value ranges (35Nm?).
I've ridden the bike for months with no problems until now. I wanted to fit a larger middle ring so pulled the arm off and changed the ring. The bolt felt a little loose when removing but thought nothing of it. When I came to re-fit the crank arm I found that the lockring was binding against the BB cup. I don't know how this has occured because it's been fine for months, the new chainring was the same middleburn but with more teeth.
The LX spider is going to need some material removing from where the lockring presses against it.


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