The Shimano ST-6703 shifter is a standout component from the Ultegra 6700 series, purpose-built for 3×10-speed road drivetrains. Designed specifically for triple chainring setups, this left-side Dual Control lever offers precise front shifting performance. Its internal cable routing provides a clean cockpit aesthetic, while the carbon fiber brake and shift levers contribute to a lightweight yet robust design. The shifter is compatible with Shimano’s 10-speed triple front derailleurs, making it an ideal choice for riders seeking versatility and reliability in their gear transitions.

Ergonomics are a key feature of the ST-6703 shifter. The lever includes adjustable reach settings, accommodating a wide range of hand sizes for enhanced comfort and control. The flatter hood shape offers increased comfort during extended rides, and the relocated brake pivot improves braking power and modulation, especially when riding on the hoods. These design elements ensure that the shifter not only performs well but also enhances the overall riding experience.