Parts

Maximize your aero efforts with Shimano's Ultegra 11-speed Di2 Dual Control TT/Triathlon Levers. These amazing aerobar-specific levers are for use with Shimano's Di2 drivetrain components (sold separately). With a simple, light touch of the easily accessed buttons, you get instant gear changes, while the brake levers offer smooth, well-modulated control right at your fingertips.

Shimano's Ultegra Compact Crankset boasts hollow-forged-aluminum arms and a hollow aluminum big ring. These technologies combine for impressive weight savings and superb strength. An integrated bottom bracket axle provides super-efficient power transfer, while chainrings with ramps, pins and notched teeth deliver lightning-quick shifting.

Replacement stem for the 2018+ Giant Propel - -8 Degree rise - Composite stem and cover Includes: - Stem - Cover - Top Cap - Hardware - Di2 plugs

- D-shaped composite tubing - 6% lighter than Contact SLR Compact handlebar - 10% more "pushing" compliance compared to Contact SLR Compact handlebar for a smoother ride quality - 30% more "pulling" stiffness compared to Contact SLR Compact handlebar for cornering, sprinting, and climbing efficiency - Drop 125mm - Reach: 72mm