The Shimano Ultegra ST-6700-L left shifter is a 10-speed dual-control lever designed for double chainring road drivetrains. It features internal cable routing, enhancing aerodynamics and providing a cleaner handlebar setup. The carbon fiber lever blade and composite bracket body contribute to weight reduction without compromising strength. This shifter is optimized for use with Shimano’s 6700 and CX-70 front derailleurs, ensuring precise and reliable front shifting performance.

Functionally, the ST-6700-L includes a trim adjustment feature, allowing fine-tuning of the front derailleur to eliminate chain rub (a capability absent in some higher-tier models like the Dura-Ace 7900). The lever’s pivot point has been strategically positioned to enhance braking power and modulation, particularly when paired with compatible calipers. Additionally, the shifter offers reach adjustment through the use of shims, accommodating a range of hand sizes for improved ergonomics. The shifter balances lightweight construction with robust performance. It is compatible with Shimano’s Flight Deck system, providing integrated ride data for those utilizing this feature.

Looking to upgrade your 10-speed road setup? The Shimano Ultegra ST-6700-L left shifter offers a blend of modern design and reliable performance, making it a valuable addition to your cycling components.