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Dura-Ace Chainring Teeth Question(4 posts)

Dura-Ace Chainring Teeth QuestionFockewulf
Jun 9, 2003 11:32 AM
I've noticed that some Dura-Ace 9-Speed chainrings have shorter teeth, with a flat spot at the end as opposed to the sharp, pointy, teeth seen on other Dura-Ace cranks and Ultegra and 105 cranks. Anyone have any idea about the reason for this difference?
re: Dura-Ace Chainring Teeth QuestionTJeanloz
Jun 9, 2003 11:37 AM
The shorter teeth combine with the magic of shifting pins and ramps to make for smoother shifts while using STI.
Jun 9, 2003 1:33 PM
Could one be a Dura Ace track ring??
Jun 9, 2003 2:14 PM
No, they're on a double, which is 53/42, so it can't be track.