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PostPosted: Thu Oct 30, 2014 4:35 am 
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Joined: Fri Oct 28, 2011 3:25 am
Posts: 887
Location: United Kingdom of Great Britain and Northern Ireland
In the case of eight notch cartridge BBs - whether lockring or cup/adapter - were these all MTB? (I know that six notches appeared on Dura-Ace BB-7700).

Thanks.


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Posted: Thu Oct 30, 2014 4:35 am 


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PostPosted: Thu Oct 30, 2014 3:06 pm 
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Joined: Tue Nov 11, 2003 9:47 pm
Posts: 1759
Location: Santa Cruz, California, USA
Are you talking about Shimano Octalink? They all have eight splines. 7700 used Octalink.

There's V1 and V2 which look similar but are not compatible. Check Sheldon Brown's pages.


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PostPosted: Fri Oct 31, 2014 12:10 am 
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Location: United Kingdom of Great Britain and Northern Ireland
Yeah - old style ISIS and Octalink cartridge bottom brackets.

I thought Dura-Ace BB-7700 had a 6 notch DS cup/adapter, and a 6 notch lockring on the NDS.

I would like to know if all the ISIS/Octalink cartridge BBs using 8 notch fittings were MTB only and not road.


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PostPosted: Fri Oct 31, 2014 6:31 am 
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Valbrona wrote:

I would like to know if all the ISIS/Octalink cartridge BBs using 8 notch fittings were MTB only and not road.


American Classic ISIS bottom bracket for road used an 8-notch tool. So does my Kult ISIS road BB.


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PostPosted: Fri Oct 31, 2014 11:22 am 
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Location: Pack filler
"octalink" sort of gives the game away :wink:

From memory only DA was adjustable so thats why it had the lockring.
MTB- i'm guessing the axle was a different length

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PostPosted: Fri Oct 31, 2014 7:49 pm 
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Location: United Kingdom of Great Britain and Northern Ireland
sanrensho wrote:
Valbrona wrote:

I would like to know if all the ISIS/Octalink cartridge BBs using 8 notch fittings were MTB only and not road.


American Classic ISIS bottom bracket for road used an 8-notch tool. So does my Kult ISIS road BB.


Thanks. That's the type of thing I wanted to know.


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Posted: Fri Oct 31, 2014 7:49 pm 


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PostPosted: Fri Oct 31, 2014 7:53 pm 
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Location: United Kingdom of Great Britain and Northern Ireland
jekyll man wrote:
"octalink" sort of gives the game away :wink:


Octalink applies to the eight splines on the axle; not the eight notches that might (or might not) be on the cup/adapter or lockring.


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