Shimano R203S/P Disc Brake Adaptor for 203mm Rotor 51mm Caliper 74mm Frame MFPN=DROPOUT-580 Features a forged aluminum body

Features a forged aluminum body and (4) phenolic pistons that have excellent insulator properties

Chainline/Hub Compatibility 141/148 Boost Hubs Chainring BCD Sram Direct Mount Color Black Defined Color Black Direct Mount Type Direct Mount SRAM Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Material Aluminum Offset 3 Ring Position/Type Chain Retaining Single Ring Round or Oval Round Tooth Count 30

Infinite torque-limiting clutch design eliminates over-torquing

Compatible with all other SRAM Eagle drivetrains this new shift lever keeps the promise of a simple shift

Provides a more linear spring rate

Shimano R203S/P Disc Brake Adaptor for 203mm Rotor 51mm Caliper 74mm Frame MFPN=DROPOUT-580 Features a forged aluminum bodyShimano R203S P Disc Brake Adaptor for 203mm Rotor 51mm Caliper 74mm Frame. Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. TECH SPECS Brake Caliper Type I. S. Mount Rotor Size 180 Post 203 Rotor