Upgrade your time trial or triathlon bike with the Dura-Ace ST-R9180 Di2 Left TT Shift/Brake Lever - the pinnacle of aerodynamic design and precision engineering. Crafted for 2x 11-speed electronic shifting systems, this high-performance lever combines cutting-edge technology with sleek aesthetics to enhance your race-day control and confidence. Materials & Construction Made from lightweight, durable materials, the Dura-Ace ST-R9180 lever ensures optimal strength-to-weight ratio, reducing fatigue during intense rides. Its aerodynamic profile minimizes air resistance, providing a sleek silhouette ideal for time trial and triathlon setups. The integrated E-TUBE cable routing offers a clean cockpit, reducing drag and simplifying installation. Performance & Engineering Designed for superior control, this lever features hydraulic brake actuation for powerful, consistent braking performance. The intuitive internal switch button allows for effortless shifting without removing your hands from the aero position, enabling quick gear changes under race conditions. The ergonomic grip and integrated switch enhance handling and comfort, giving riders an edge in critical moments. Components & Technology Equipped with 's advanced Di2 electronic shifting system, the ST-R9180 delivers precise, lightning-fast gear changes. The internal multi-shift function is customizable via the Synchronized Shift system, allowing riders to tailor shift responses to their riding style. The lever undergoes rigorous testing to ensure reliability and durability under race conditions. Style & Use Case Perfect for time trial and triathlon enthusiasts seeking maximum aerodynamics and control, this lever seamlessly integrates with TT bars, making it ideal for race-specific bike setups. Whether you're aiming for a new PR or prioritizing consistent performance in triathlon events, the Dura-Ace ST-R9180 elevates your bike's handling and speed. Innovative Features - Aerod