Just ran into this issue. Old sprocket (OEM) is measured at 16.89 mm and the new one measures at 16.77 mm in thickness. my issue is that there is a bit of side to side play with the new sprocket installed. I am not sure if I I have the wrong sprocket OR if I could use a washer on the back side of sprocket to push it out just a bit more. Thanks.

 

Me thinks it's a variance between manufacturers, not really anything to worry about. The chain doesn't try to move sideways, just front to back

James

 

Non issue. Mount it up and go.

 

Thanks guys! I think I should be riding tomorrow!

 

a little bit of side to side play is necessary on the CS sprocket.