Does anyone know a source for 17 tooth front sprockets that fit the early bikes (1989-1993)? These don't have the lip in the sprocket. The sprocket is flat on both sides.

Dennis Kirk, MC Superstore, and Ebay only show lipped sprockets.

Www.sprocketspecialists.com?

Sprocket Specialists is the only one I can think of off hand.  I used their 15T 504 (no hub) sprocket on my 97 GS and it comes in a 11-17 tooth range.  These people list one:

http://jetsrus.com/sprocket/sprocket_specialist_504.html

Or call SS direct:

http://www.sprocketspecialists.com/

Thank you Jack!