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PostPosted: Sun Sep 08, 2013 6:15 pm 
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Joined: Wed Apr 18, 2012 9:47 pm
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Location: Stratford upon Avon
As above or maybe a Ti BB around the same size

the lighter the better

thanks


Last edited by dan smith on Thu Sep 12, 2013 8:38 pm, edited 1 time in total.

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PostPosted: Sun Sep 08, 2013 6:53 pm 
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Hi mate I have a new XTR un91 in 73 x 115 would that be any good did the do 118mm?


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PostPosted: Thu Sep 12, 2013 8:39 pm 
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bump.....i believe i actually need a 122mm !! anything out there?


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PostPosted: Fri Sep 13, 2013 10:04 am 
Old School Hero

Joined: Fri Jun 28, 2013 11:08 am
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Location: Reading
dan smith wrote:
bump.....i believe i actually need a 122mm !! anything out there?


I think u need an XT 730 BB, BB-M730 is the part number........don't think XTR came in 122.5mm

Alternatively this will fit http://www.ebay.co.uk/itm/Shimano-Botto ... 3a816f665d


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PostPosted: Fri Sep 13, 2013 1:33 pm 
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Thanks vmlopes, i was hoping to get somthing a bit lighter but i think i might have to settle for the UN54/55. 300g :oops:

thanks

Dan


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PostPosted: Fri Sep 13, 2013 3:49 pm 
Old School Hero

Joined: Fri Jun 28, 2013 11:08 am
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Keep an eye out for the XT one, they do pop up now and then


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PostPosted: Wed Oct 23, 2013 9:14 am 
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For XTR 900 cranks you need a 107-110mm spindle, as they are low profile cranks

For XTR 730 cranks you need a 122.5 spindle. The BB-UN7X (cartridge type) weigh around 250g, so not too bad. You can also use the BB-UN730; not sure about the weight, though.


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PostPosted: Wed Oct 23, 2013 11:39 am 
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Not saying they didn't make 122.5 91s, but I've never seen one.

If you're stuck I have a 122.5/73 UN-72. Problem is shipping from here would be double what it would be from a UK supplier........if they have stock.

Image


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PostPosted: Wed Oct 23, 2013 1:04 pm 
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Location: Yorkshire, England
There was no 122 in un-9x
Just 107/113/115 then later the 110
It was only designed for XTR and Dura-Ace so no need.

You can of course pick up other models and brand in lightweight steel or Titanium setups.


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