The Shimano Dura Ace BR9170 is a hydraulic disc brake caliper. As part of the Dura Ace 9100 series, this caliper offers system engineering at its peak for an unparalleled level of performance.

Features:

• The hydraulic brake system is optimally balanced for racing
• Provides premium heat dissipation
• One piece alloy body has an integrated low-profile design
• Dedicated brake lever shape, stroke, contact point, stiffness and dedicated shaft for better control and confidence in race conditions
• Easy tool access and wheel replacement mean simple set up and maintenance