• Carbon brake and alloy shift levers
• 11 Speed DoubleTap with Zero-Loss shifting
• 2-Piston open system
• Piston Size: Fr 19mm, Rr 18mm
• 2-Piece forged aluminum caliper w/ top loading pads
• For 140 or 160mm rotors
• -01, -02 : Post Mount; -03,-04: Flat Mount
• Compatible with 11 speed derailleurs only
• SRAM Model ID: SB-FRC-HRD-A1
