Bottom bracket for ultegra crank?
11-29-07, 12:14 PM
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Bottom bracket for ultegra crank?
Im trying to find the lightest BB I can use with an octalink ultegra crankset. I need english thread 68mm and a 109mm-109.5mm spindle, what are my options? I was looking through the weight weeniest site and thought about the dura ace BB 7700, but under comments it says "Splined" instead of Octalink, will that bb work? I already wasted $60 bucks on a BB that I can't use, apparently its "ISIS" and the spindle has 10 grooves instead of 8, didnt even notice when I bought it.
11-29-07, 01:40 PM
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Octalink (v1) is a form of splined crank/interface bottom bracket. The duraace bottom bracket should work.
11-29-07, 01:58 PM
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You'll probably be limited to the 1 or 2 BBs that can be found in Octalink format. IIRC, there are two different Octalink formats as well (V1/V2).
If the crank is a 6500, you'll most likely need a BB-6500 botom bracket.
If the crank is a 6500, you'll most likely need a BB-6500 botom bracket.
11-29-07, 02:26 PM
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The crank is a 6500, I guess I'll just play it safe and get the specific ultegra 6500 BB even if it is a bit heavier.
11-29-07, 11:19 PM
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I won one on ebay earlier fairly cheap, used, but low miles so I'm happy.
It would be nice if the other I bought worked cause its really light at 140 grams. I suppose I could always go for a compatible crank for it sometime down the road, although I did the math and with a crank in my budget im only saving 175 grams total, so no big deal I guess haha!
It would be nice if the other I bought worked cause its really light at 140 grams. I suppose I could always go for a compatible crank for it sometime down the road, although I did the math and with a crank in my budget im only saving 175 grams total, so no big deal I guess haha!
11-30-07, 07:26 AM
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I will have a 105 Octalink crank & BB available very, very soon.
PM if you're interested.
PM if you're interested.
11-30-07, 08:04 AM
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I know how to adjust a bottom bracket. The DA Octalink BB did not hold up well in wet conditions, as it was not particularly well sealed. For a minor increase in weight, the Ultegra is pretty smooth and more dependable. Just one man's experience.
11-30-07, 09:18 AM
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A weight weenie riding an Ultegra crankset ??
FOR SHAME!
You absolutely require a $500 carbon fiber set! And ditch that second water bottle. Do you have any idea how heavy water is?
FOR SHAME!
You absolutely require a $500 carbon fiber set! And ditch that second water bottle. Do you have any idea how heavy water is?
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