Re: Narrow sprocket and chain- Not recommended here
On my second test ride on my conversion the chain jumped and locked up the rear wheel. I was going quite slowly but making a U-turn in front of the house. It just happened too quickly to do much more than pick my butt back up from the street. Since then I modified the bike's frame so I could operate the chain directly without the idler pulley. Much easier to pedal and a good bit quieter.
Goldwing 1500, Silverwing 600, Schwinn 49