The Halo Aerorage wheelset is tested by the couriers and track riders of the world.Built with a silver, aerodynamic wide rim, with CNC braking surface, the Aerotrack wheel can take daily abuse without issue due to their sturdy construction.It\'s size of 700c, is compatible with all the wheels of road bikes. The tires recommended are from size 700cx20 to size 700cx32. You will need a 48mm inner tube. And you need to mount a rim tape between the rim and the inner tube to prevent and reduce punctures..