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Old 01-04-08, 12:52 AM   #1
sscherer2030
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Using a 70 mm bottom bracket in a 68 mm bb shell...

Hi, I am very new at this stuff and was wondering if anybody has ever tried to use a 70 mm bottom bracket in a 68 mm bottom bracket shell on the frame... Both are English Threaded... I was thinking it would work out when I bought the Dura-Ace bottom bracket but now I am nervous (frame is arriving soon)... Thanks for any help...
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Old 01-04-08, 12:56 AM   #2
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It won't work. Just buy the correct part.
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Old 01-04-08, 12:59 AM   #3
sscherer2030
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Anyone want to trade for a 70mm Dura-Ace bottom bracket?

I have a 70mm Dura-Ace bottom bracket, Octalink (model 7703), one of the lightest bb's in production (so I hear) and I need a 68mm Octalink bottom bracket (hopefully also the Dura-Ace)... Let me know
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Old 01-04-08, 07:59 AM   #4
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A 70mm D/A BB is going to be Itialian thread.
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Old 01-04-08, 08:12 AM   #5
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Originally Posted by Rev.Chuck View Post
A 70mm D/A BB is going to be Itialian thread.
Right. I've never heard of a 70 mm English bottom bracket.

In the very unlikely event it really is both English and 70mm you can get a 2 mm spacer to fill the gap.

There are 73 mm English threaded bottom brackets but they are intended for MTB use.
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