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PostPosted: Sun Jan 08, 2012 3:57 pm 
Retro Guru

Joined: Wed Nov 18, 2009 12:00 am
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I have a pair of Race Face Turbines I bought about 10 years ago, they are 9spd compact drive with ISIS BB. I haven't used them in years and no longer have an ISIS BB, however I want to fit them to my girlfriends reasoanbly modern Diamond back which is currently fitted with Truvativ square taper cranks which weigh a ton.

How do I go about sussing out what axle length BB I need?

Thanks!


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PostPosted: Sun Jan 08, 2012 4:31 pm 
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
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Location: Rurally close.
Probably not much help at all but i normally just try a couple different ones as i (and many on here) generally have a few square taper bb's lying around. I bet the same cant be said for isis though.

I normally go for 113 as a start point. Be interested to know if there is a rule for this though.


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PostPosted: Sun Jan 08, 2012 5:21 pm 
retrobike rider
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Location: Yorkshire, England
A link for you (p.s. 113mm)
http://raceface.com/instructions/CRANKS ... _crank.pdf


cyfa, as ISIS created a standard, they also have standard lengths apparently. Which is nice.
113mm being the standard 68/73 shell length one for MTB triples.


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PostPosted: Sun Jan 08, 2012 5:55 pm 
Gold Trader / rb Rider / Special
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Thats excellent.


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PostPosted: Sun Jan 08, 2012 6:08 pm 
Retro Guru

Joined: Wed Nov 18, 2009 12:00 am
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Thanks for the advice. I bought them years ago from the local bike shop and they supplied suitable bb which is long gone now. I'll order one up and continue pimping her bike - It is a basic Diamond Back alloy frame with all my old bits - Pace RC31 forks, Bontrager bars, hydraulic discs, Hope/Mavic717 wheels, Deore groupset and now Race Face Turbines. Not that she'd notice any difference she still hasn't worked out how to change gear effectivly!


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