Shimano Dura-Ace ST-R9180 Hydraulic Di2 STI TT/Tri Lever offers top-tier performance for triathlon and time trial cyclists. This advanced system combines hydraulic disc brakes with Di2 electronic shifting, ensuring smooth control and power with minimal effort in any riding condition. Key Features High-performance hydraulic disc brake system for superior control and modulation. Di2 technology allows precise and easy gear changes with a light touch. Electrical wires replace traditional cables, preventing issues like contamination and stretching. Full synchronised shifting with Synchro shift compatibility for custom tuning. Each side features a single shift button for streamlined operation. Lightweight design with carbon fibre lever blades and carbon composite bracket body. Hydraulic brake lever delivers excellent stopping power, especially from the hood position. Hydraulic reservoir tank auto-adjusts pad to rotor clearance, maintaining performance during pad wear. Adjustable reach for levers ensures a comfortable fit for all hand sizes. Free stroke adjustment for pad to rotor contact setting. Levers are supplied without electrical cables, which need to be ordered separately. The Shimano Dura-Ace ST-R9180 Hydraulic Di2 STI TT/Tri Lever is designed for cyclists who demand precision and reliability. Its innovative features make it a valuable addition to any high-performance bike setup.