AERO 52 II Disc DT240 EXP/350Enhance your road cycling experience with the AERO 52 II Disc wheels from ICAN. These carbon wheels have a 21mm internal width and 27. 3mm outer width, resulting in improved aerodynamics and stability. Perfect for achieving your best performance on the road. Specification Type Carbon Disc Wheelset Rims Superlight AERO 52 II Disc Material 100% Carbon Fiber Toray T700 & T800 Size 700C Rim Drills: 24 24 Holes Outer Width: 27. 3mm Inner Width: 21mm Depth