Shimano Dura Ace ST-R9180 Di2 11-Speed Left Front Hydraulic Disc Shift/Brake Lever Bike Accessories Brand_CeramicSpeed and heat management

and heat management

and using aerodynamics is the best way to achieve that goal

On the top computer mounting

United States

Flash Mode: Daytime 605 Lumens – 80 hrs

Shimano Dura Ace ST-R9180 Di2 11-Speed Left Front Hydraulic Disc Shift/Brake Lever Bike Accessories Brand_CeramicSpeed and heat managementCustomizable the function to fit in rider's riding styleSingle button on each side of the shift lever only works with Synchro ShiftE TUBE projectNew cable junction (EW RS910 911, EW JC130) available to integrated with bike frameSwitch button integrated inside without hand releaseIntuitive shifting controlClean cockpit areaOptimum power transmitted with grip firmlyOptimally balanced hydraulic brake system for racingIntegrated E TUBE cable and internal