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PostPosted: Sat Aug 27, 2011 6:51 pm 
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Joined: Thu Apr 30, 2009 9:47 pm
Posts: 625
Location: Newbury, Berkshire
FluffyChicken wrote:
The code will be MR 21531 (21.5 x31 x 7)


Back now - Sorry I had to rush off.
Ah yes I can see now that it is MR 21531. The bill for the three bearings and postage was for £23 in April 2007, so probably about £7 each. I remember now putting two of them on the Drive Side to replace the 14mm width bearing in the picture above.

FluffyChicken wrote:
I've found some bearings MR2231 (ukbikestore) but at £20 each I'll leave be given I probably need some other parts it's just not worth it. I'll see what I can bodge up with the current 3804's in there as even the 3804's are a small fortune for some bearings
As they are RF specific and the Signature series instructions say they might have a grease port :).
Have to try get them out of the cups and off the axle at some point :lol:.

MR2231
http://www.ukbikestore.co.uk/product/16 ... aring.html

been fun looking though... makes me want to find a cheap fix all the more though :lol:


Well done for finding them, even if you end up sorting things another way - every day's a learning day 8)

As for ISIS in general, you made a good point earlier regarding how long it was around for!

The actual balls in the bearing are tiny little things compared to Square Taper. I ended up buying a ludicrously expensive Stronglight Twister Titanium for that Kula Primo of mine.... with a view to it lasting longer. :roll: Seems ok so far - oops, that'll be a bad omen!

Pip.


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PostPosted: Sun Aug 28, 2011 10:32 pm 
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Joined: Sat Jan 24, 2009 7:33 pm
Posts: 934
http://www.ukbikestore.co.uk/product/164/mr2231_2rs/raceface-signature-isis-bottom-bracket-bearing.html

how's about them?


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PostPosted: Mon Aug 29, 2011 7:44 am 
retrobike rider
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Joined: Fri Aug 08, 2008 2:36 pm
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Location: Yorkshire, England
alanf wrote:


They're almost perfect of course (see few post up ;))
Just the cost doesn't justify what they are. damn propriety stuff.


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PostPosted: Mon Aug 29, 2011 9:56 am 
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Joined: Sat Jan 24, 2009 7:33 pm
Posts: 934
FluffyChicken wrote:
alanf wrote:


They're almost perfect of course (see few post up ;))
Just the cost doesn't justify what they are. damn propriety stuff.



I saw that not long after I posted! yet before I hit reply half the topic didnt show up :? it stopped at your 12:50 post! freaking internet! half my crap on fb isnt showing either! which could be a good thing :)


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