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Rampage
PostPosted: Sun Oct 20, 2013 12:05 am 
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Joined: Thu Apr 17, 2008 1:24 am
Posts: 7665
Location: Manchester
I saw a square taper BB today that looked to have a different taper, I tried it in some cranks and the taper was different, it still wobbled when it was pushed fully into the crank.

Looking on Sheldon Browns site JIS and ISO both were 2 degree.
So what could this have been?
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Midlife
PostPosted: Sun Oct 20, 2013 12:32 am 
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Joined: Fri Oct 14, 2011 8:41 pm
Posts: 9224
Location: Cumbria
Suntour were a bit off the wall in the early days :)

TA / Stronglight ?

Shaun
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mattsccm
PostPosted: Sun Oct 20, 2013 7:37 am 
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Joined: Tue Jun 03, 2008 4:31 pm
Posts: 790
It is also length meaning 1 bottoms on the other and in reverse 1 doesn't always go on properly
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David B
PostPosted: Mon Oct 21, 2013 4:32 pm 
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Joined: Wed Jul 25, 2007 2:04 pm
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Location: Completely in the dark, thanks to me good mate Terry....
Didn't the BB units on the original Viscount Aerospace models have an odd quirk like that? Or was that the crank arm tapers?

David
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lewisfoto
PostPosted: Mon Oct 21, 2013 6:48 pm 
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Early Dura-Ace had its own taper as well
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Rampage
PostPosted: Mon Oct 21, 2013 7:37 pm 
retrobike rider
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Joined: Thu Apr 17, 2008 1:24 am
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Possibly one of the above then!
I wish I'd had a proper look at it now!
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bm0p700f
PostPosted: Tue Oct 22, 2013 11:05 pm 
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Did early campag have there own taper as well.
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