The Odd Bike. and a brand new 2-stroke conversion kit kit for $120. From the USA, guess UK/Europe legislates these out of existance although the clip-on motor, the "winged wheel" etc have a bit of history in the UK.
1953 BSA Winged Wheel
Steve Glover [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
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