Fitting modern 105 octalink bottom bracket on 80's road bike?
08-09-05, 02:53 PM
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Fitting modern 105 octalink bottom bracket on 80's road bike?
Hi All,
Plumbing for some insider knowledge here... I have a mid-80's Specialized Allez road bike with a 68mm bottom bracket. I'm planning on upgrading the cranks and saw jensenusa.com have on offer $100 ultegra 39/53. Of course, the spindle required is octalink, so I'd have to replace my bottom bracket. I see no reason why that'd be a problem, but wanted to confirm that before shelling out around $150...
thanks!!!
-morgan
Los Angeles
Plumbing for some insider knowledge here... I have a mid-80's Specialized Allez road bike with a 68mm bottom bracket. I'm planning on upgrading the cranks and saw jensenusa.com have on offer $100 ultegra 39/53. Of course, the spindle required is octalink, so I'd have to replace my bottom bracket. I see no reason why that'd be a problem, but wanted to confirm that before shelling out around $150...
thanks!!!
-morgan
Los Angeles
08-09-05, 03:13 PM
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As long as you know the threading (and it sounds as if you do) it should work just fine.
Remember, 109.5mm for double, 118 for triple.
Remember, 109.5mm for double, 118 for triple.
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08-10-05, 02:49 PM
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Thanks!
I suspect the threading is English... 1980's specialized *must be* english, right?! I posted to the specialized rider support forum on their website, anyway.
-morgan
I suspect the threading is English... 1980's specialized *must be* english, right?! I posted to the specialized rider support forum on their website, anyway.
-morgan
08-10-05, 03:38 PM
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Been there - done that - works like a charm! Just measure the width of the BB housing before you order the new BB - most are 68, a few are 70.
