Thread: 9/10 speed groupset on 80's 531c Road Frame w/weird BB shell
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Old 09-29-10, 07:26 AM
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Mr IGH
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Yes, I'd use 1.5mm each side, install the cranks and measure the chainline, adjust as needed. I've stuffed 73mm BB in a 68mm shell on a low cost repair for a friend, working fine after 2 years.
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