Dura Ace chainring

miffed · 2011-06-05T19:53:58+01:00

I've got a Scott tt bike with dura ace kit. I was looking at the chainring and it seems that some of the teeth have lost the tops of the teeth but looking at chain reaction (http://www.chainreactioncycles.com/Models.aspx?ModelID=38161) seems to the design anyone know why this is?

This topic has 1 reply, 2 voices, and was last updated 15 years ago by dave atkinson.

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June 5, 2011 at 7:53 pm #13564

miffed

I’ve got a Scott tt bike with dura ace kit. I was looking at the chainring and it seems that some of the teeth have lost the tops of the teeth but looking at chain reaction
(http://www.chainreactioncycles.com/Models.aspx?ModelID=38161) seems to the design anyone know why this is?
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June 7, 2011 at 3:56 pm #644801
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dave atkinson

It’s to help the chain ramp
It’s to help the chain ramp up at the shifting points where the power transfer from the rider is most likely to stop it doing so.
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