Treaded Lectra Lite Wheels,2-1/4" Overview Designed for electrics and smaller models where weight is a premium. These are made from thinner 1/2 in. material. Hubs fit 1/8 in. axles but may be drilled out to fit 3/16 in. axles maximum. The tires are made from thick, durable foam mounted on sturdy hubs. The injection molded snap-together hubs securely lock the rubber to prevent run-away tires. The plastic hubs are also very durable and have no threads to jam on your axle.