I've mounted a Chicken Power motor on my wife's old hybrid bike. This bikes come with a somewhat knobby (they call it "aggressive" at the bike shop) tire. The drive wheel on the Chicken is knurled steel. Any suggestions on best match?
I have none at this time, though someone suggested searching old engine websites for O & R or Orline or Ohlson and Rice as they made motors for many things of the same size ie. chainsaw, generators, etc.