SRAM Level Ultimate Disc Brake Caliper Assembly - Post Mount non-CPS BLK A1+ 2017+ B1 Spring Weight-500 }Shimano Ultegra Di2 RD-R8050-SS Rear

}Shimano Ultegra Di2 RD-R8050-SS Rear Derailleur - 11 Speed Short Cage Black

RapidFire Plus technology is suited to quick shifting giving riders the ability to downshift three gears in one stroke

Ring Position/Type Chain Retaining Single Ring Tooth Count 34 Round or Oval Round Drivetrain Speeds 12 Offset 3 Chainline/Hub Compatibility 141/148 Boost Hubs Material Aluminum Defined Color Black Direct Mount Type Direct Mount SRAM

Narrower inner rim width supports narrower tire profile in rear improves rolling resistance and sharpens tire edge for grip

SRAM Level Ultimate Disc Brake Caliper Assembly - Post Mount non-CPS BLK A1+ 2017+ B1 Spring Weight-500 }Shimano Ultegra Di2 RD-R8050-SS RearSRAM Level Ultimate Disc Brake Caliper Assembly Post Mount (non CPS) Black A1+ (2017+) B1. SRAM Level disc brake caliper assemblies. TECH SPECS Brake Caliper Type Post Mount Defined Color Black Rotor Included No