Shimano Dura Ace Brake Caliper BR-R9110 Direct Mount rear
When aerodynamic efficiency is as important as braking power, look no further than the Dura-Ace BR-R9110.
The most advanced groupset ever: Shimano Dura Ace Brake Caliper BR-R9110-R Direct Mount
Two braking options now exist for riders at DURA-ACE 9100 level - mechanical rim brakes or hydraulic disc brakes. Hydraulic road disc brakes in the new DURA-ACE line-up add an extra element of control and confidence to brake performance in tough (weather) conditions.

Dual-pivot or Direct Mount type rim brake calipers bring incredibly powerful performance, offering the best balance between rigidity, weight and stopping power, providing a sleek design, bringing better clearance for tires up to 28c and a 43% reduction in flex over previous DURA-ACE brakes. Direct mount options provide integrated aerodynamic designs at the front (BR-R9110-F), on the rear seat stay (BR-R9110-RS) or under the bottom bracket (BR-R9110-R).

Features
Increased overall braking performance
Integrated sleek low-profile caliper design
Comfortable riding with wider tire on rough road
Better clearance with wider tire
Compatible with 28C tire size
Intuitive braking control
Smooth and light operation
SLR-EV technology

Product features
Use: Road, Triathlon
Group: Dura Ace 9100
Model: BR-R9110-R
Type: Rear - Direct Mount Chain Stay (Bottem Bracket)
Mount: Direct Mount
Brake shoe: R55C4 (Standard for aluminum rim)
Reach: 51mm
Technology: SLR-EV
Rim width: 20.8-28mm
Maximum tire size: 28mm
Reference brake lever: ST-R9100, ST-R9150
Material
Aluminum anodized
Weight
139g (manufacturer information)