ICAN Full Carbon Cyclocross Frame with Carbon Fork Disc Brake BSA for Quick Release Wheels 51/53/55/57cm Full carbon lightweight cyclocross frame-disc brake-this is 100% full carbon super light weight cyclocross frame, frame weight just 1098grams(57cm), the other sizes will be more light. So competitors can easily carry their bicycle to overcome barriers or slopes All internal cable routing- hide the brake cable and shift cable inside the frame Tapered head tube-full carbon fiber tapered head tube 1-1/8" ---1/1/2" design, strengthening the torsion rigidity, let rider have better handling. This frame is compatible with DI2, and could install mud-guards and racks Warranty: 2 years