Shimano BR-R451 Front Mid-Reach Road Caliper Silver - Lightweight, High-Performance Brake for Road Bikes Model Name_Monarch with Autosag (Specialized B1) intuitive adjustments for precise navigation

intuitive adjustments for precise navigation

and a long-lasting cycling component

Compatible with 2017+ SID RLC A1

providing optimal power transfer and stability during demanding climbs and descents

they are suitable for road biking

Shimano BR-R451 Front Mid-Reach Road Caliper Silver - Lightweight, High-Performance Brake for Road Bikes Model Name_Monarch with Autosag (Specialized B1) intuitive adjustments for precise navigationShimano BR R451 Road Brake Calipers Adjustable toe in brake shoes Use of these calipers with standard SLR enabled STI and brake levers results in a "mushy" brake response Compatible with STI and brake levers that are Super SLR enabled (e. g. Dura Ace Di2 7970, Dura Ace 7900, Ultegra Di2 6770, Ultegra 6700, 105 5700, Tiagra 4600) Light action and accurate brake power