SHIMANO DURA-ACE BR-R9100 Rear Caliper Brake with R55C4 Shoe

The SHIMANO DURA-ACE BR-R9100 Rear Caliper Brake is designed for road cyclists who demand lightweight performance, reliable stopping power, and race-level control. Built as part of Shimano's premium DURA-ACE groupset, this rear brake caliper delivers excellent braking efficiency while maintaining a sleek and aerodynamic profile. The advanced dual-pivot design improves brake response and modulation, giving riders more confidence during high-speed descents and sharp braking situations. Equipped with R55C4 brake shoes, it offers dependable contact and smooth braking performance across different riding conditions. Its strong and lightweight construction helps reduce overall bike weight without sacrificing durability. Whether you are upgrading a racing bike or replacing an existing rear brake setup, the BR-R9100 provides the precision, responsiveness, and premium quality expected from Shimano DURA-ACE components.

Key Features

• Brand: SHIMANO

• Model: BR-R9100

• Series: DURA-ACE

• Position: Rear Brake

• Brake Type: Dual Pivot Caliper Brake

• Brake Shoe Type: R55C4

• Mount Type: CS-51 with 10.5mm Sunken Nut

• Performance: Smooth and responsive braking control

• Design: Lightweight and aerodynamic construction

• Application: Road bikes and performance cycling setups

• Packaging: Individual Pack

Product Specifications

• Product Name: SHIMANO DURA-ACE Rear Caliper Brake

• Model Number: BR-R9100

• Groupset: DURA-ACE

• Brake Placement: Rear

• Brake System: Mechanical Caliper Brake

• Shoe Model: R55C4

• Nut Type: 10.5mm Sunken Nut

• Caliper Design: Dual Pivot

• Compatibility: Road bike braking systems

• Condition: New

Braking Performance

The BR-R9100 brake caliper is engineered to provide excellent balance between braking force and control. The dual-pivot mechanism enhances braking stability while reducing unwanted flex under heavy loads. Combined with Shimano R55C4 brake shoes, riders get predictable braking feel and efficient stopping performance during both training rides and competitive racing.

Easy Operation / Usage

• Install the rear brake caliper on the compatible brake mounting point

• Secure using the supplied 10.5mm sunken nut system

• Connect and adjust the brake cable according to bike setup

• Align brake pads correctly with the wheel rim

• Test braking performance before riding

Why Choose This Product

• Premium DURA-ACE level performance

• Lightweight and race-ready design

• Strong and smooth braking response

• Improved control during high-speed riding

• Durable Shimano construction quality

• Trusted choice for road cyclists and racers

In the Box

• 1 x SHIMANO BR-R9100 DURA-ACE Rear Caliper Brake