There exists proof that a little variety of two-wheeled equipment with rear treadle drives were being built in southwestern Scotland in the early 1840s. Kirkpatrick Macmillan, a blacksmith of Dumfriesshire, is most normally involved with these. He is said to possess traveled forty miles (64 km) to Glasgow in 1842, https://tedomarket.com/product/sports-entertainment/cycling/bicycle/hybrid-bike/electric-mountain-bicycle-fat-tire-1000w-motor-15ah-variable-speed-smart-road-bike-with-two-batteries/