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Dura-Ace Triple -- Shimano announcement (Europe)(10 posts)

Dura-Ace Triple -- Shimano announcement (Europe)PdxMark
Aug 16, 2001 2:29 PM
As a follow-up to a thread a couple days ago, here's an announcement from the Shimano-Europe web site. Go to http://www.shimano-europe.com/cycling/ and search "dura-ace triple" - or you can ride Campy Chorus like I do and not waste your time... :)

New Dura-Ace triple drive train
Shimano will introduce a triple chainring version of Dura-Ace. An additional 30 teeth inner chainring on the hollow crankset has impact on the existing system : The Octalink™ bottom bracket must be wider, same for front and rear derailleurs that need modified cages. A left-hand triple shifter is also introduced.

Two main new features can be noticed : the smallest chainring is no longer fixed on the crankarm but directly on a modified middle chainring, keeping the stiffness and weight very low.
The rear derailleur features a so-called SMARTCAGE with two larger 13 teeth pulleys. This concept offers more flexibility in product specification. The cage length is reduced while it pulls a wider range of chain length. Finally, the Dura-Ace triple version offers 9 more gears, for only 173,5 grams more !!! This new Dura-Ace triple chainring version is fully compatible with the Shimano FlightDeck computers.
If Campy offered...rib-eye
Aug 16, 2001 3:19 PM
comparible ratios as Shimano I would definitely go with them. I don't ride the corn fields of Iowa...I need a good grunty granny gear (as well as the other 2-3 lower ratios available on a Shimano triple).
Campy does offer... I thinkPdxMark
Aug 16, 2001 6:26 PM
I used to ride a standard 105 triple with a 30-42-53 with a 25-12 cassette. I switched to a standard Chorus double 39/53 with a 25-12 cassette. With this Chorus set-up I "lose" only the 3 bottom gears in my old 105 set-up. But before I committed, I confirmed that chorus can run a 29-13 cassette (with a long rear derailleur arm), which would pretty much match my old 105 gear range. (I wanted to know I had options...) It turns out that with my Chorus set-up I am often in a lower gear than in my old 105 set-up because I seldom used the third ring... So you can ride a Campy double ...
Campy does offer... I thinkrib-eye
Aug 16, 2001 8:08 PM
Well, I had all the ratios nicely laid out to prove my point, but lost the whole fricken message before it got posted. I don't have the energy to do it all again. So, you'll just have to take my word for it that a Campy 39 ring and 29 rear cog isn't close to a Shimano 30 and 25 combination. Do the math.
Campy offers the Racing Triple set....TrekRider
Aug 16, 2001 6:26 PM
triple crankset of 30-40-50 or 30-42-52 and a new cassette of 13-29. This would seem to be at least as low gearing as any Shimano setup.
Campy offers the Racing Triple set....Cliff Oates
Aug 16, 2001 7:31 PM
Unofficially, yes. Officially, a 10 speed triple will be part of the 2002 lineup. I would presume there will be one at the Daytona level, but the Record/Chorus level is the one everyone is waiting for. Campy has 9 speed cassettes in 13-26 and 13-28 ranges. Shimano's lowest gearing is a 12-27 cassette, unless you go with MTB gearing. FWIW, a 39-29 combination is roughly the same as a 30-23 combo.
you're correct of course...rib-eye
Aug 16, 2001 7:44 PM
What I didn't indicate at all is that I wanted a triple in the Record/Chorus category. I believe the Racing triple is at least one level below the Chorus.
you're correct of course...Cliff Oates
Aug 16, 2001 8:37 PM
The racing triple is OK. It is what is included if you order a Record or Chorus triple group right now. I have one on my cyclo-cross bike, and it's a nice crankset.
Campy offers the Racing Triple set....rib-eye
Aug 16, 2001 8:11 PM
you're correct in that Campy combo would produce a lower granny than Shimano. I had a brain fart during my first response. What I was trying to say is that Campy doesn't offer a triple at the Record/Chorus level.
Campy offers the Racing Triple set....kilimanjaro
Aug 17, 2001 9:15 AM
The Racing Triple set is a level above Daytona, as the cransk, FD, and RD are all more expensive then the ones on Daytona Triple. An agent at Colorado cyclist told me that Racing Triple is equivelent to Chorus except for the B.B.)