Engine sprockets for sidecars

[RR2]

Who sells 20 tooth tapered sprockets for EL motors? Thanks guys

[RR2]

The smallest V twin sells is 22 tooth, manual calls for 20tooth for EL motor. I did find a 21 tooth at a old shop in town which I will try with my sidecar.might have to go to a 22 tooth trans sprocket instead of the 23 tooth I have there now.What sprocket combo has anybody else tried with the EL knuck motor?