|Triple cranck: DuraAce or Record/Chorus||matjaz|
Feb 6, 2002 7:23 AM
I have to make the decision: DuraAce or Chorus.
For me the decisive point is which one performes better with triple crankset. Last season I was driving Campy triple Veloce , but I was disappointed. It was always very difficult to shift properly to find the middle chainwheel. I found it very rarely with first shift. I always had to make trimming (which with Campy IS possible) to avoid sliding the chain towards front derailers arm. What was also very annoying is that I had to make the trimming of front derailer position also when the gear on the rear sprockets was changed.
It was not a problem to shift on small or big (front)chainwheel but definetly to middle one. I do not remember such problems when driving MTB with Shimano LX Deore gears. It is known, that Shimano has "digital" shifting while Campy has more "analog". I do not find a problem with Campy with double, but triple simply does not work fine. I however did not try any roadbike Shimano triple. Does somebody have such experience?
Best regards, Matjaz
|no contest if you ask me||ColnagoFE|
Feb 6, 2002 8:14 AM
|I'd go Chorus. Campy has been doing high-end triples for a lot longer than Shimano. D/A triple is basically a bolt on affair. Not a true redesigned triple...though I imagine it works OK. I have a Mirage triple and it works fine. not sure you're gonna see a ton of difference with Chorus (I have a Chorus double and not a triple so I'm just guessing here). Maybe your Veloce wasn't adjusted right?|
Feb 6, 2002 9:11 AM
|Your experience with trimming is exactly why I don't like triples, takes too long to shift to the middle ring and get it trimmed, and aftermarket rings only make the problem worse. My wife's been riding an Ultegra triple, it's faily smooth but always requires trimming on the middle ring. My guess is that the Dura-Ace triple will shift better than the Ultegra or Campy but it's still a triple. If you're set on getting a triple I would think your decision should be based on the sized of the rings. The Dura-Ace triple is 53-39-30, the rest of the Shimano line is 52-42-30, I would prefer the D/A middle. With Campy their 9-speed stuff comes either 52-42-30 or 50-40-30, and there is also a 32 ring available. The new 10-speed Record triple is 53-42-30. I just put a Campy Racing T 50-40-30 on my wife's bike leaving the rest Ultegra and it works ok, but of course requires trimming on the middle. (And Shimano does have trimming on their triple.) Have you considered going with a Campy 10 speed DOUBLE with a 13-29 cassette? If that could get the job done for you it would surely shift better than any triple. If you've got to go with a triple I would guess the D/A will shift best. People who own them say they are "great".
|Heresy! Heresy I tell you!||Bob D|
Feb 6, 2002 9:23 AM
|Nothing, but NOTHING, in the triple world shifts better than a well set-up Campy triple - it's the quintessence of the item. You should only need to trim between about 3 and 10/1 and 7 if it's set up. Any system that doesn't require you to do this is gonna a) give you slow initial ring-shift, and b) wear your parts due to bendy chain-line (more/less, depending on rear triangle size).
Don't say triple, say Campy 3 and you can't go wrong.
|Heresy! Heresy I tell you!||matjaz|
Feb 6, 2002 3:10 PM
|Thanks for encouraging me, but I will be very carefull this time due to veloce 3 experience. In last Tour magazine it is also mentioned a problem of "chainsuck" with Campy Record3(did I write it correctly), I guess chain slipping down !?!?
Which triple did you test ?
|Heresy! Heresy I tell you!||Bob D|
Feb 7, 2002 1:23 AM
|Racing Triple and Chorus - found them both to be as good as each other, and as good as you could want - go for it.|
Feb 6, 2002 3:13 PM
If D/A also needs fine trimming everytime you shift to middle ring I will really go Campy.
I will choose 52/39 in front and 13-39. The only problem with 13-29 is that you loose 18 comparing with 13-26 ! If I could choose I would have:14-15-16-17-18-19-21-24-26-30. On flat is good to have one tooth difference cogs. Is there any producer making campy-compatible different cog-combinations ?
But if D/A works fine with triple I would prefer having 52-42-30 in front and 13-23. I think 42 offers more usefull gears than 39.
Thanks for all your answers folk. I hope somebody with triple D/A will also read this and cut the Gordian knot.
|re: D/A Triple||Chen2|
Feb 6, 2002 3:38 PM
|I've never even seen one of these, but I don't think you'll have a choice in rings if you want it to shift right. The D/A triple comes in 53-39-30, a matched set. Maybe you could replace the middle ring with the Ultegra middle 42. Triple rings are specific to the set. After market rings just don't work well on a triple, they seem to work well on doubles. The middle ring on a triple is designed to help the chain up from the granny, after market rings aren't. If you can get what you want in a double it will shift better than a triple. I have no big preference between brands. For the last 4 years I've been riding mostly on a Dura-Ace double, 53-39 and 12-27, it has over 7000 miles on it and nothing has been replaced, not even the chain. It requires NO trimming, ever, it's just slam-bam-thank-you-ma'am-I'm-outa-here! I assume that Campy's doubles are the same way, no need to trim. If I needed a new drive train I would probably buy a Record 10 double just to have another gear. If I had a triple I would rather have a 39 or 40 middle ring because it will let you climb most hills without needing to shift to the granny, and the shift from the granny back to the middle is godawful. Hope you're happy with whatever you choose.