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Dura Ace BB Vs. Ulterga BB Vs. 105 BB's(9 posts)

Dura Ace BB Vs. Ulterga BB Vs. 105 BB'sCharlie the fred
Jul 4, 2001 8:26 AM
You'll have to bear with me as I'm new to road bikes so this may seem like a stupid question.
What's the main differences, other than weight, between the Dura Ace, Ulterga and 105 bottom brackets and are all their cranks and chain rings interchangeable?
re: Dura Ace BB Vs. Ulterga BB Vs. 105 BB'sGTRider
Jul 4, 2001 1:35 PM
Dura Ace can only be used with Dura Ace.Ulterga and 105 BB's are interchangeable.
re: Dura Ace BB Vs. Ulterga BB Vs. 105 BB'sLC
Jul 4, 2001 6:40 PM
If you are talking about the new splined BB's. A lot of people use Ultegra BB with Dura Ace cranks because of the better seals. From what I have heard, go with Ultegra BB because they last the longest, without doing alot of maintenance. Weight and quality of bearings is what you are paying for.
sorry, you're wrong GT....IAmtnbikr
Jul 4, 2001 7:47 PM
they all do interchange, but you can only use the Dura-Ace bb with a double crankset. The Ultegra and 105's are the same spline. Just as the person below states though, most prefer the Ultegra over the Dura-Ace. Read the reveiw section for more information on problems with the Dura-Ace.
Thanks for the info, it's much appreciated. nmCharlie the fred
Jul 5, 2001 2:54 AM
My Bad......GTRider
Jul 5, 2001 9:06 PM
This road stuff is still new to me,I thought I heard somewhere dura ace could not be used with the others.Like with XTR.Oh well you learn something everyday.Thanks for the correction
GTRider
They're all interchangablepmf
Jul 5, 2001 8:34 AM
All the splined Shimano BBs work with all the Shimano cranks. Personally, I find the DA BB to be more trouble than its worth and use the Ultegra one instead with DA cranks. Its a couple of grams heavier, but so much easier to install and adjust. Basically trouble free. If you like to tinker instead of ride, get the DA BB.
DA track BBveloboy
Jul 5, 2001 11:10 AM
If its weight or DA zoot you are looking for, you can also get a Dura Ace track bottom bracket that zips in just like the Ultega and 105. I don't remember the model number but its in the shimano catalog. I have a couple of thousand miles on mine with no problems or additional adjustments.
No weight Advantage...TJeanloz
Jul 5, 2001 12:44 PM
The D/A Track bottom bracket zips in just like the Ultegra for a really good reason- they're the same thing with the exception that the D/A uses stell lockrings instead of plastic. Both weigh 220g.