found a strange BMX scooter on ebay
https://www.ebay.com/itm/255076821660interesting as it is...frame looks like it would be a good platform for a diy motor as well (double down tubes, flat mounting point)... but who knows what the rear stay width is, i'd guess it's two front wheels....
https://www.ebay.com/itm/255076821660interesting as it is...frame looks like it would be a good platform for a diy motor as well (double down tubes, flat mounting point)... but who knows what the rear stay width is, i'd guess it's two front wheels....