Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK Model=Boyd Sprocket Separate and independent Open and

Separate and independent Open and Pedal pistons for optimum tunability

5/3/4/5/6/8/10mm keys and holder

Thanks to the use of special steel and processes with minimum tolerances these cassettes have been designed to be durable and resistant

Comes in a sealable bag

Aither is a multi-cell foam compound that forms the structure of the Armour Labeled Size 24 x 1

Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK Model=Boyd Sprocket Separate and independent Open andThe Shimano BR RS811 R under bottom bracket mount road brake caliper provides an exceptional balance of rigidity weight and stopping power. Features a sleek and integrated low profile design that is compatible with 20. 8 28mm wide rims and up to 28C sized tires. Exceptional balance of rigidity weight and stopping power Sleek and integrated low profile caliper design Compatible with 20. 8 28mm wide rims and up to 28C sized tires Includes R55C4