Shimano GRX RD-RX815 Rear Derailleur - 11-Speed Long Cage BLK With Clutch Di2 For 1x 2x CheckoutSpec= 12x142mm - Black Compatibility iPhone 11 Pro Max

Compatibility iPhone 11 Pro Max Waterproof No Bike Mountable Yes Defined Color Black

Drivetrain Speeds 12 Defined Color Black Rings 46 Spindle Interface Type SRAM DUB Chainring BCD Direct Mount SRAM Number of Chainrings Single Color Black Crank Intended Use Gravel BB Included No Pedal Spindle 9/16" Chainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm Chainstay Chainline/Hub Compatibility 141/148 Boost Hubs Crank Length (mm) 175 keyword search Rival AXS

Rotor Included No Brake Caliper Type Post Mount Color Black Color Silver piston covers Hydraulic Fluid Type Mineral Oil Pad Compound Semi-Metallic Brake Position Front or Rear Defined Color Black

5" Straight Steerer Black

Shimano GRX RD-RX815 Rear Derailleur - 11-Speed Long Cage BLK With Clutch Di2 For 1x 2x CheckoutSpec= 12x142mm - Black Compatibility iPhone 11 Pro MaxShimano GRX RD RX815 Rear Derailleur 11 Speed Long Cage Black With Clutch Di2 For 1x and 2x. GRX RD RX815 Di2 Rear DerailleurOperates with Shimano Di2 for digital electronic shifting Gravel tuned clutch tension provides smooth and reliable mixed surface shifting TECH SPECS Largest Cog 34 Color Black Rear Der Shifter Compatibility Shimano Road Di2 Rear Derailleur Mount Type Shimano Rear Direct Mount Rear Derailleur Mount Type 10x1 Standard Drivetrain