Shimano BR-R451 Road Brake Calipers

• 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
• Adjustable toe-in brake shoes
• Use of these calipers with standard SLR enabled STI and brake levers results in a "mushy" brake response
• Brake Mount Type: Mid Reach Caliper (47mm - 57mm)
• Brake Lever Actuation: Short Pull Super SLR
• Pad Type: Cartridge
• Defined Color: Black
• Brake Position: Rear