Omnidirectional tyres created by Canadian inventor William Liddiard – move in all directions, spin on the spot, parallel park like a boss.
An airless ‘energy return wheel’ working concept by designer Brian Russell:
…instead of air, it uses rubber stretched over a series of carbon nano tube reinforced composite rods to provide its cushioning. these rods can be adjusted, changing the tension of the rubber to suit different types of terrain, improves flexing and recoil cycling. with the intention of reducing weight, a 29er wheel made from carbon fiber is incorporated. further improvements include the possibilities of implementing a thin sidewall to keep mud and trail debris out for a more consistent ride.