|Dura Ace cranks with Campy parts?||Adrian|
Nov 5, 2001 11:01 AM
|I am thinking of putting some Dura Ace cranks and BB on my Chorus bike. Does anyone know if there is a compatibility problem with doing so? I know you are supposed to use Campy 10 chainrings with 10 speed, but functionally, is this an issue? I want to put on D/A because of the reliablity problems I have had with Campy BB's, and I want to get some 177.5 or 180mm crank arms. Also, switching to D/A would cut almost 1/2 a pound, and everything would get (theoretically) stiffer.|
|1/2 lb? don't think so||d'oh!|
Nov 5, 2001 11:39 AM
|1/2 lb? don't think so||Adrian|
Nov 5, 2001 7:58 PM
|What are you talking about. Back up your argument. Chorus cranks are 667 grams, D/A are 560. Chorus BB's are 220, D/A are 178. That means the chorus set up is 887, and the D/A is 738. That is a difference of 150 grams. There are 434 grams in a pound, so that comes to a difference of a little over 1/3 a lb. Considering that I said almost 1/2 lb, that is not a horrible miscalculation/rounding up. This difference would also be somewhat exacerbated considering I am talking about comparing 180mm cranks, so the differences would increase|
|go cheaper for a little more in weight.||dupe|
Nov 6, 2001 5:26 AM
|supergo (they are ok - not great)
fsa alu cranks - gossamer black 624 grams.
ultegra b/bracket 8 grams heavier than dura-ace for a whole lot less maintenace woes.
the guys at fsa are brilliant in terms of advice and support http://www.fullspeedahead.com/
they will be straight up about what it will be like with 10 speed.
i am more than happy with my 9 speed setup.
Nov 6, 2001 8:36 AM
|You've compared apples and oranges- your weight for the DA crankset is without bolts and c'rings, the Chorus weight is with bolts and rings. Per Damon Rinard the actual weights are 625g and 666g for the crankset, 175g and 224g for the BB, yielding a net weight savings of 90g or ~1/5 of a lb.
That being said, the Dura-Ace setup is considerably stiffer, while the bottom bracket is more finicky.
|re: Dura Ace cranks with Campy parts?||Winnebago|
Nov 8, 2001 7:34 AM
|Man, I never heard so many weith weinnes? None of them even answered your question. Yes, it will work, the Dura Ace cranks with Campy 10spd chain. The only issue you may have is some additional noise. 10spd chain rings are ever so slightly thinner so the chain may make some noise as it turns around the chain rings. I looked into this when they first started selling cranks for 8spd or 9spd, and then same applies to 10spd.