|Anyone checked out the new DURA ACE TRIPLE parts yet?||Cruzer|
Oct 21, 2001 12:10 PM
|Any one ridden or scoped it out? I saw some specs for weight, it seemed pretty heavy, especially the crank, as compared to Ultegra triple stuff. I was wondering if it's THAT better than the Ultegra stuff.|
|Shimano 2002 Propaganda||grzy|
Oct 22, 2001 7:56 AM
|DA triple crank is listed at 680 g. vs 779 g. for Ultegra - that's almost 15% lighter. Triple DA BB is 217 g. vs. 242 g. which is only 10% lighter. Seems like a 10% to 15% weight savings (126 g. for the pair) on the crank & BB is nice when one compares the shift levers and brake calipers with almost no savings. DA Rear triple derailleur is listed at 212g. vs. 232 g. for the Ultegra. If you're really worried about weight then you should be on a double ;-) Typicaly the DA stuff will be at least as stiff and strong as the Ultegra plus it's lighter. Ultimately the concept of diminishing returns applies and it's all about what's important to you. |
I have yet to see a DA triple in the flesh, but I'm sure it performs a tad better than the Ultegra line.
|Shimano 2002 Propaganda||David Feldman|
Oct 23, 2001 7:11 AM
|I'm sure there's a large marketing scam/propaganda factor to it except for that front derailleur; there has been a need for one with a vertically deeper cage for years because of cyclists wanting to tripleize by adding a small ring to their "crossover" double chainring bikes. To shift something like 30/39/53 takes a front derailleur that hasn't existed until now. I hope Shimano makes several ft. ders. that share this design, an inside plate that can carry the chain from small to middle ring at a lower, earlier point.|
Oct 23, 2001 8:52 AM
|Got to read the Shimano Technical Info and it shows that there are actually FOUR trim points on the DA triple vice TWO on their other triples. The DA front shifter is triple specific, unlike the others. This is a plus in my mind having messed with dialing in triples.|
|re: Anyone checked out the new DURA ACE TRIPLE parts yet?||Chen2|
Oct 22, 2001 8:37 AM
|I heard from a happy owner that the D/A triple rings are 52-39-30, which I think will be better for most people than the standard 52-42-30. Better still, maybe Shimano will offer some optional size rings. for their triples.
|Actual weights||Tony Montana|
Oct 23, 2001 4:02 PM
|We just put a DA triple set on a customer's bike. Man, is it nice stuff! Lighter weight, better shifting, and a much better front derailleur (as mentioned by others below).
Here's the weights that I got:
Bottom bracket: 118.5mm 216g
Calipers: front and rear w/pads 320g
Cranks: 170mm, w/rings (53/39/30) 678g
Front derailleur: 28.6 clamp 111g
Rear derailleur: 211g
STI Shifters: 319.7
|Why 39?||Chris Zeller|
Oct 23, 2001 4:02 PM
|I guess this is so that you can match cadence in a paceline with people on doubles, but I think this is too bad since I feel you get a more even gear range with 42. Could you swap it out to a 42? Maybe this is where they get some of the weight savings? Smaller rings.
I've heard that these are a bolt-on design. is there a disadvantage to this? DA on my touring bike would be just too darn cool. Not really functional different than Ultegra I'm sure, but cool just the same! Better yet, add a DA triple with CF FSA cranks!
Oct 24, 2001 9:12 AM
|39/53 gives you a wider range and less overlap. Many racers will use a 42 vice 39, but ultimately having a triple means you want a wider range with closer spacing between gears and less overlap. If you're riding pacelines then you're not typically climbing hills and wouldn't need a triple. The mistake is thinking that you can have just one setup that will do everything well.|| |