Shimano 105 CS-R7101-12 Cassette - 12-Speed 11-34t HG L2 Silver ModelNumber=K4984 5mm 11-Speed 52/36t 110 BCD

5mm 11-Speed 52/36t 110 BCD BB30/PF30 Spindle Interface Black

}Shimano Dura-Ace ST-R9170 Di2 11-Speed Right Shift/Brake Lever

Rear Derailleur Mount Type 10x1 Standard Rear Der/Shifter Compatibility SRAM X-Actuation Cage Length Long Drivetrain Speeds 12 Color Lunar Chain Wrap Capacity (teeth) 42 Largest Cog 52

}Campagnolo Bora Ultra WTO 45 Front Wheel - 700c 12 x 100mm Center-Lock 2-Way Fit Gray

Shimano 105 CS-R7101-12 Cassette - 12-Speed 11-34t HG L2 Silver ModelNumber=K4984 5mm 11-Speed 52/36t 110 BCDShimano 105 CS R7101 12 Cassette 12 Speed 11 34t HG L2 Silver. Shimano 105 CS R7100 series 12 speed cassettes bring versatility to any rider or road. From sprinting on the flats to climbing steep inclines these 11 34t cassettes have you covered. Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation Compatible with new 12 speed and road 11 speed freehub bodies Compatible with HG 12 speed chain TECH