Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK MFPN=803-04-259 Model SIDLuxe Ultimate Flight Attendant

Model SIDLuxe Ultimate Flight Attendant A2 Fitment Trek Top Fuel Gen 3 4 Stroke 50mm Eye Eye-185mm

It’s lightning fast to attach and remove

}Wheels Manufacturing BB30A Outboard Bottom Bracket for 24mm cranks (Shimano) with Angular Contact Bearings Black

Ironing temperature 125~145 °C

Bearing# 1526 ID X OD X W (mm) 15x26x7

Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK MFPN=803-04-259 Model SIDLuxe Ultimate Flight AttendantThe 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