Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK CheckoutTitle=SRAM HS2 Disc Brake Rotor - 220mm 34 Designed for ebike Yes

34 Designed for ebike Yes Length 294 Defined Color Black Spoke Interface J-Bend

Zero Play Hinge

}SRAM Disc Brake Caliper Piston Kit - For Level Ultimate (A1) Level TLM (A1) and eTap HRD

Color Black Bearing Type Cartridge Weight 44 Upper Stack Height 8 S

The 12-tooth X-SYNC pulley wheel holds the chain in place reducing bounce and chain slap

Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK CheckoutTitle=SRAM HS2 Disc Brake Rotor - 220mm 34 Designed for ebike YesThe 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