Originally Posted by
bonsai171
I'll have to put the cog back on and really check out the chainline to see if there's a visible difference. Thanks for the background on the DA, almost sounds like its part of the design.
The cog came from a friend. I'm running a 17t now, and wanted to try a 16 T. Its got some miles on it, but I found out the 16 T could fit on one side, and I can run a 17t freewheel without changing the chain length. Going to take this thing for a good spin!
Dave
It is a part of the design. Anything with the Dura Ace name is designed specifically for racing. Not all fixed cogs are for racing and the tooth shape/profile, even the specific metal of the cog or any plating on the metal can make a difference. Shimano has done a lot of experimenting over the decades with teeth profiles and even teeth pitch. Of course none of that guarantees this is what is causing your noise. You could just need to clean your chain.