'RigWheel' is propelled by modified recumbent bike mechanics. The drive mechanism is made up of three wheels with a rubberized profile that engage with a corresponding profile to the 'big wheel'. The larger drive wheel centered between two smaller wheels on tensioner arms. The three work in concert when braking and starting from zero where the driver may otherwise find themselves swinging up or back. The tensioner arms have a built in damper to resist this kickback or lunge effect. Together the 'Rig Wheel' is the hub-less wheeled vehicle without the excess cost of the traditionally structured giant wheel bearing (etc) hub-less assembly.
MIT Media Lab