Improved braking performance under high load Exceeds the EN requirements (130 kg total weight) for front and rear brakes Larger cooling disc allows for faster heat dissipation 30% higher braking force in the front and 10% higher braking force in the rear with the new brake lever gear ratio of the BL-C6010 For mounting with quick release, the M10x4mm counter nut must also be ordered (65.38580)