Bike Shop Bundle: Shimano BR-R451 Mid-Reach Road Brake Calipers Front & Rear, Black Upgrade your road bikes braking performance with this high-quality Shimano BR-R451 Mid-Reach Road Brake Caliper Set, featuring both front and rear calipers in sleek black. Designed for cyclists seeking precise control, reliable stopping power, and modern engineering, this bundle offers optimal compatibility and performance for road bikes with mid-reach dropout mounts (47mm – 57mm). Engineered with advanced materials and lightweight construction, these brake calipers deliver light action and highly accurate braking response, ensuring confident descents and responsive stopping in all riding conditions. The cartridge pad type provides easy replacement and maintenance, while the adjustable toe-in brake shoes allow riders to customize brake bite for improved modulation and reduced brake squeal. Built with Shimanos innovative Brake Mount Type technology and compatible with STI and brake levers that feature Super SLR actuation (including high-end Dura Ace Di2, Ultegra Di2, 105, and Tiagra models), these calipers are ideal for performance-oriented road cycling. Please note that when used with standard SLR-enabled STI levers, brake response may feel mushy, emphasizing the importance of compatibility for optimal performance. Whether upgrading an existing road bike or customizing a new build, the Shimano BR-R451 Mid-Reach Caliper Set offers durability, precision engineering, and sleek black styleperfect for road cyclists who demand dependable stopping power with minimalist design and superior component technology. **Features & Benefits:** – Compatible with STI and brake levers that are Super SLR enabled for seamless integration – Light-action, precise brake power for confident stopping – Adjustable toe-in shoes for personalized brake modulation – Mid-reach caliper mount (47mm 57mm) suited for a variety of road frame designs – Durable materials with high-performance engineering for reliability – Sleek black finish enhances bike aesthetics and style – Cartridge pads for quick maintenance and replacement – Ergonomic design optimized for consistent brake modulation and control Improve your road bikes braking system today with this premium Shimano caliper bundlecombining top-tier performance, innovative technology, and stylish design to elevate your cycling experience.