Originally Posted by
buddiiee
You're probably going to be the man I come to for the future. Are you selling any of these cogs by chance?
And did you mean that the Dura Ace and 600 cogs are the same? So does that imply the bodies are pretty similar as well?
Yes, the 6-speed Dura-Ace and 600 freewheel bodies were dimensionally identical. The 7-speed Dura-Ace was dimensionally identical to the 7-speed Santé. If you felt like it, a 7-speed 12-34 freewheel was easy to build if you didn't mind a "600" 34-tooth cog.
I built a few custom Shimano freewheels back when I worked at Euro-Asia Imports. I bet they still have some parts laying around:
https://www.euroasiaimports.com/prod...mano-c1102.htm