[Shuteye]

I own a Chorus 10 speed cassette. If I use the 10 speed spacers, are 8 or 9 speed cogs interchangeable? I ask this because these are cheaper on e-bay and would allow me to mix and match as needed. Thanks in advance.

 

[Shuteye]

Great answer ... concise and to the point. I hadn't considered how timing would contribute to the excellent shifting of modern cassettes. Thanks!