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Old 09-19-2010, 12:19 PM   #7
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Joined: Apr 2007
Location: Addis Ababa, Ethiopia
Oddometer: 847
Originally Posted by The Letter J
Have you considered a dampened counter shaft sprocket as a cheaper (slightly less effective? ) alternative? The splines on your counter shaft are the same as those on a 690e/r/smc which use a rubber dampened sprocket. The difference being that the 690 sprocket is slightly thicker which could be easily cut down to fit the exc. Sprockets are available in 15/16/17 tooth for around $30.

I have not personally tried this but I have put a non-dampened exc sprocket on my 690 using a small spacer behind it, so it would make sense that it could be done the other way by removing material from the inside of the sprocket.
A dampened sprocket isn't going to do anything for you. The sprockets just have a rubber piece on either side that touch the chain as it passes over the sprocket. It's basically for noise reduction, not for reducing driveline shock.
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