Shimano Ultegra RD-R8000-GS Rear Derailleur - 11 Speed Medium Cage Black CheckoutSpec= Carbon Outer Cage }Shimano SM-JC40 Di2 External Frame

}Shimano SM-JC40 Di2 External Frame Junction Box 4-Port

Pre-shaped knees

Finger Style Full FingerSeason Warm WeatherTouch Screen Compatible YesGender/Age UnisexColor BlackPadding NoneSize SmallInsulation Type NoneDefined Color BlackFabric Weight Light

}RockShox BoXXer Air Spring Upgrade Kit: DebonAir 190mm and Sealhead for BoXXer C1+ (2019+)

Shimano Ultegra RD-R8000-GS Rear Derailleur - 11 Speed Medium Cage Black CheckoutSpec= Carbon Outer Cage }Shimano SM-JC40 Di2 External FrameShimano Ultegra RD R8000 GS Rear Derailleur 11 Speed Medium Cage Black. Shimano Ultegra RD R8000 Rear Derailleur TECH SPECS Largest Cog 34 Color Black Rear Der Shifter Compatibility Shimano Road Rear Derailleur Mount Type Shimano Rear Direct Mount Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 11 Weight 210 Chain Wrap Capacity (teeth) 39 Cage Length Medium