Shimano Disc brake 105 ST-R7170L/BR-R7170 - front wheel

For the 40th anniversary since its market introduction in 1982, the 105 series receives its ultimate upgrade with Shimano's electronic Di2 shifting technology. Maintaining the typical price level of the series, this makes the precise shifting function, precisely tuned gear ratios, and a reliable braking system accessible to an even larger circle of road cyclists. True to the tradition of its predecessors, the current 105 is also equipped with top technologies – such as the wireless cockpit – and premium features from the state-of-the-art Dura Ace and Ultegra series, allowing its riders to rediscover the road every single day.

• 12-speed
• Di2
• Wireless
• Disc Only
• 50-34 - 11-34T
  
  

• Group: 105
• Model: R7170
• Application: Road
• Brake Lever: ST-R7170
• Brake Caliper: BR-R7170
• Brake Hose: SM-BH90-JK-SSR
• Rec. Rotor: SM-RT70
• Pistons: 2
• Pad: K05S
• Mounting: Clamp - 23.8-24.2 mm