Brakes-Rim

Shimano's BR-R451 Road Brake Calipers feature a sleek, minimalist design while providing excellent stopping power when you need it. - Compatible with STI and brake levers that are Super SLR enabled (Dura Ace Di2 7970, Dura Ace 7900, Ultegra Di2 6770, Ultegra 6700, 105 5700, Tiagra 4600) - Light action and accurate brake power - Adjustable toe-in brake shoes - Use of these calipers with standard SLR enabled STI and brake levers results in a "mushy" brake response - Brake Lever Actuation: Short Pull Super SLR - Brake Mount Type: Mid Reach Caliper (47mm - 57mm) - Brake Position: Front - Defined Color: Black - Pad Type: Cartridge

- 107mm arch gives a better mud guard clearance - Updated rubber boots - Strong braking power with excellent braking control

With a focus on reduced weight and cross-country tuned stopping power, the Shimano Deore XT BL-M8100 levers provide intuitive modulation so that you can explore your limits with confidence. They feature an optimized lever axle position, refined ergonomics, and increased rigidity thanks to an additional contact point. - 10% stiffer than previous generation M8000, even under high-temp conditions - Quicker brake engagement with a shorter free stroke - Tool-free reach adjustment - Free stroke adjustment - I-SPEC EV Clamp Band

Shimano Ultegra R8010 direct-mount type brake caliper. - Direct mount brake - Direct brake mounts connect directly to the frame to reduce redundant parts and increase overall braking performance - Sleek design - Narrower gap between arms - Wider clearance with larger tire sizes - Compatible with wider 28c tire size - Model Number: BR-R8010-F - Series: Ultegra - Brake Type: Direct mount type - Average Weight: 174 grams

The Shimano Ultegra BR-R8100 series caliper brakes offer a clear contact feeling while balancing rigidity, weight, and stopping power. With clearance for 28mm tires, the design is still sleek. They are available in traditional and direct mount options. - Exceptional balance of rigidity, weight and stopping power - Maximum tire size is 28C - Sleek and integrated low-profile caliper design - 51mm reach