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question about shimano dura ace double / triple(4 posts)

question about shimano dura ace double / triplePeterRider
Nov 6, 2001 2:53 PM
What is the compatibility between Ultegra / Dura ace double - triple STI shifters / rear derailleur ? Does any work with any ? And also, is the chain different from double to triple ?

Thanks !

Pierre
Only 2002 DAColombian Climber
Nov 6, 2001 4:48 PM
Only the new 2002 Dura Ace comes in Triple STI. chain is the same. Climber
re: question about shimano dura ace double / tripleChen2
Nov 7, 2001 7:32 AM
The Ultegra and Dura-Ace 9 speed STI doubles are fully compatible. The Ultegra triple cranks, BB, and front and rear derailleurs are specific to the triple, but "may" work ok with double components. Double rings don't work well on triples. Ultegra shifters are same for doubles and triples.
Have no knowledge of the new D/A triple.
-Al
DA triple info...yoda
Nov 9, 2001 8:20 AM
The new components (according to Shimano) are: front and rear derailleurs, left hand STI lever, longer BB axle, and new chainrings. The inner ring fits to the middle ring, not the crankarm, so I assume the crankarms are unchanged; TA and others made/make adapter rings to do this also. The only ratio available is 53x39x30, but presumably the inner and outer rings can be swapped for other sizes.

There have been pictures on the German Shimano website for several months, plus I've seen the 2002 catalogue, but not the parts "in the metal". UK mag Cycling Plus mentions in passing that DA triple shifts better than double (!), in August bike review. Groupset review in September issue, but hasn't reached here (Oz) yet.