The ST-R7120 introduces a new lever design, enhancing control for a diverse range of riders. The revised lever position and bracket shape are meticulously crafted using data from an extensive study of different hand shapes. All-Condition Confidence: Experience unparalleled confidence in all weather conditions. The ST-R7120 integrates the all-condition confidence of hydraulic disc brakes with quick and intuitive shifting, meeting the high standards expected from Shimano 105. Proven Hydraulic Braking Technology: The BR-R7170 calipers feature proven hydraulic braking technology, ensuring reliable and efficient braking performance. The incorporation of the Shimano Flat Mount System makes them ideal for road bikes. Compact and Lightweight: Designed to be more compact and lighter than ever, the R7170 brakes offer a perfect balance between performance and weight. The low-profile design provides wide pad clearance, facilitating easy wheel removal. One-Way Bleeding for Easy Maintenance: The R7170 brakes feature one-way bleeding, simplifying maintenance and ensuring clean, hassle-free upkeep. Quiet performance adds to the overall appeal of these brakes. Elevate your road cycling adventures with the Shimano 105 ST-R7120 Disc Brake Set – where innovation, performance, and reliability converge.