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The SHIMANO ULTEGRA Di2 Shifting/Brake Lever ST-R8050 (Left) delivers electronic shifting precision for road cyclists demanding reliable performance. This left-side lever integrates seamlessly with Shimano's Di2 system, offering crisp, instantaneous gear changes at the touch of a button. Built with SHIMANO's renowned durability, it features an ergonomic design that reduces hand fatigue during long rides. Compatible with ULTEGRA groupsets, this component elevates your bike's shifting responsiveness and overall ride quality.