Carbon-fibre composite (graphite)Tuff Wheels are a long favourite of racers, jumpers and freestylers. The Graphite's feature sealed-bearing hubs in 3/8". Skyway's Graphite's are moulded from our proprietary blend of long-strand carbon fibre and nylon. This new blend produces a wheel far stiffer than any composite wheel on the market. These wheels put the power to the ground yet take the abuse of hard landings without having to true your spokes after every ride. This strength and stiffness also allow the use of higher tire pressures than possible with previous composite wheels.