Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK Model=Boyd Sprocket A truly all terrain tire

A truly all terrain tire designed for grip on snow hard pack loose dirt or grass via its well spaced large square knobs

6061 alloy body with 4140 heat treated broached spindle

ultimate suppleness and comfort

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

Disc Center Lock Hub Model Solix G Valve Presta Position Front and Rear Rim Drilling F: 24 R: 24 Depth 19mm Rim Material Carbon Wheel Diameter/ISO 700C / 622 Wheel Tire Type Tubeless Ready Wheel Weight 1320g Rim Model UL250c Spoke Type I9 Aluminum Axle Type F: 12mm R: 12mm Hub Spacing F: 100 R: 142 Rim Color Black

Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK Model=Boyd Sprocket A truly all terrain tireThe 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