Human - powered quadracyles have been in use since 1853 .
Human - powered quadracyles have grown into several families of vehicles for a variety of purposes , including tourist rentals , pedal taxis , private touring , mountain and industrial use .
Human - powered quadracyles have been in use since 1853 and have grown into several families of vehicles for a variety of purposes , including tourist rentals , pedal taxis , private touring , mountain and industrial use .