I know at one time a high school industrial arts class in Indiana produced a 4-wheeled vehicle with bicycle spoked, flanged wheels under a rigid frame w/ seat and frame at center w/ pedal power to rear axle. Wheel diameters were similar to that of a common "speeder". The last production I knew of went to foreign countries back in the late 1960's.

These vehicles consisted of 4 semi-pneumatic, tired wheels to which flanges made from flat plate steel were bolted to these wheels. The two front wheels were mounted to a free-wheeling axle that spanned the trackage rails. The two wheels on the rear were similar but were keyed to the axle which was driven by a belted pulley driven by a small Briggs & Stratton engine. This engine was mounted to a lightweight square-tubular frame that held the riders seat that was mounted directly behind the engine. Also a tool tray for lineman tools and supplies was mounted to the frame The tubular frame was able to be easily broken apart for ease of handling and transport from a truck vehicle to point of assembly and point for use on the track. There was a foot pedal which operated a take-up pulley for the drive belt that governed speed.

This vehicle was originally built at Perry, OK but I believe was later sold to a business in the Eastern US.