Shimano BR-R451 Dual 57mm Drop Rear Road Bike Brake Calliper

Good value 57mm drop rear calliper brake

• Super SLR dual pivot design keeps operating friction to a minimum, improving braking performance
• Must be used in conjunction with ST-4600, ST-4603, ST-5700, ST-5703, ST-6700 or ST-7900 STIs for correct leverage ratio
• Enhanced brake arch proportions give a quicker linear response and increased power
• 57mm drop
• Lightweight aluminium calliper design with tough anodised finish
• Toe-in adjustable brake shoes for perfect pad alignment
• Durable quick release for fast and easy wheel removal
• Comes with 10.5mm sunken nut