Shimano Dura-Ace Di2 hydraulic disc brake set for the rear: right ST-R9270 shift/brake lever paired with a rear BR-R9270 flat-mount caliper.

• Dura-Ace R9200, 2x12-speed Di2
• Semi-wireless: lever communicates wirelessly, powered by a CR1632 coin cell
• Hydraulic flat-mount disc brake caliper with Servo Wave
• Lever reach adjustment
• Supplied pre-filled with hose and Ice-Tech finned resin pads
• Right lever controls rear shifting and rear brake
• Rear hose length 1700 mm