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PostPosted: Thu Nov 24, 2011 9:37 am 
Gold Trader
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Joined: Fri Jan 23, 2009 2:30 pm
Posts: 12427
Location: Surrey
Just to try and add some clarity, it sounds like you have an m950bb already. These are rebuildable, but if you have done so few miles on yours, perhaps a regrease is all that is needed?

You can also get an m952bb, but thus is sealed, so once gone, it's gone.

Other options are: 105, 600 (ultegra) or dura ace,though the road bbs weren't available in the correct size for xtr, they are close enough.


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PostPosted: Thu Nov 24, 2011 11:01 am 
Gold Trader
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Joined: Wed Jun 20, 2007 11:19 pm
Posts: 7006
Location: Odense, Denmark
I found the M950 BB to be prone to needing frequent stripping and regreasing - but is otherwise pretty much indestructible.

It's not fit and forget like most BBs. But it is buy and keep.....


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PostPosted: Thu Nov 24, 2011 12:57 pm 
Devout Dirtbag

Joined: Fri Oct 14, 2011 3:54 pm
Posts: 131
Location: Denmark (Vejen)
Hi

With all these replys so fast I´m impressed by this site :D

I will start to get the BB removed and se if it´s a real XTR 950 BB then the bearings will be testet and relubed/changed (maybe se if I can make a better bearing solution to it).

The thing that worries me with the road BB are the chainline when using E-Type front mech and the seals.

Cheers


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PostPosted: Thu Nov 24, 2011 3:19 pm 
Devout Dirtbag

Joined: Fri Oct 14, 2011 3:54 pm
Posts: 131
Location: Denmark (Vejen)
The BB is out now and it is a BB-M950 and is in a degreasing bath right now but in my eager I forgot to see which side the two different bearing cups belong..

Any who can remember that ?


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PostPosted: Thu Nov 24, 2011 3:42 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader

Joined: Sat Jul 21, 2007 9:48 am
Posts: 6979
Location: Bristle
they're threaded such that they only fit one side of the frame :)


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PostPosted: Thu Nov 24, 2011 7:34 pm 
retrobike rider
retrobike rider
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Joined: Fri Aug 08, 2008 2:36 pm
Posts: 16747
Location: Yorkshire, England
These may or may not help you rebuild it.
The Dura-Ace do not seem to be setup to run in 73mm or in e-type setting. Just standard 68mm shell. So probably no luck there (I do not know)
As they are similar
7700 tech docs and exploded diagram
http://techdocs.shimano.com/media/techd ... 646804.pdf
http://www.kurbelix.com/Shimano_Technis ... 700-EV.jpg
This rebuild walk-through in details (pics as I cannot read that)
http://blog.goo.ne.jp/kino55crazy55/e/2 ... 6b85beed6e


The M950 one (both versions)
Image
and another
Image


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 Post subject:
PostPosted: Thu Nov 24, 2011 7:37 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader

Joined: Sat Jul 21, 2007 9:48 am
Posts: 6979
Location: Bristle
for anyone who may be interested i'll be listing an M950 BB in the FS forum shortly...


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PostPosted: Mon Nov 28, 2011 11:54 am 
Devout Dirtbag

Joined: Fri Oct 14, 2011 3:54 pm
Posts: 131
Location: Denmark (Vejen)
Very very nice whith all the info and technical pictures.. :D

BB are fixed and runs smooth again.. Thanks Mates :xmas-big-grin:


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PostPosted: Mon Nov 28, 2011 7:25 pm 
Gold Trader
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Joined: Wed Jun 20, 2007 11:19 pm
Posts: 7006
Location: Odense, Denmark
Carsten G wrote:

BB are fixed and runs smooth again.. Thanks Mates :xmas-big-grin:


Velbekommen


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PostPosted: Mon May 06, 2013 9:56 pm 
Old School Hero
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Joined: Tue Jan 08, 2013 8:47 pm
Posts: 199
Location: Barrrkshire
Hi All

Couple of questions regarding the M950 bottom bracket
Anyone know where I can buy on line 2.5mm and 1mm spacers?
I think I need a 1mm spacer RHS as I will be using a e-type mech
Second question is what is the function of the threaded ring No.5 in the first pic and No. 6 in the second pic in this thread and how should it be adjusted?


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