Wheelie bike of non-bicycle manufacturers that developed and sold add-on products, such as the Wham-O wheelie bar. Though initially a US fad, wheelie bikes also became popular in the UK, Canada, New Zealand, and South Africa. Australia had its own Malvern Star Dragster, ,Brazil had its own Monark Tigrão., and in Norway, Øglænd made the DBS Tomahawk. The former The Shaggs singer Dot Wiggin recorded the song "Banana Bike" in 2013 as a tribute to her sister Helen, who died in 2006. Helen owned a yellow imported Raleigh Chopper that she used to keep fit with, that Dot found amusing that a
Electric bicycle complicated but numerous 'replace a wheel' solutions are now available on the market. An Electric Pusher Trailer is an e-bike design which incorporates a motor and battery into a trailer that pushes any bicycle. One such trailer is the two-wheeled Ridekick. Other, rarer designs include that of a 'chopper' styled e-bike, which are designed as more of a 'fun' or 'novelty' e-bike than as a purposeful mobility aid or mode of transport. Electric cargo bikes allow the rider to carry large, heavy items which would be difficult to transport without electric power supplementing the human power input. Various designs (including