Disc brakes are the future of road cycling. They're proven in mountain and cyclocross, and with the new EC90 SL Disc wheels combined to the latest brake systems, there are no longer any compromises associated with going disc. The EC90 SL takes the proven Fantom rim shape and scales it down to a shallower 38-millimeter depth. These wheels offer fierce acceleration, smooth, dependable durability and impressive aerodynamics. From the spring classics to rough and tumble cyclocross racing, you'd be hard pressed to find a condition where the EC90 SL Disc was out of its element.