The Shimano 105 ST-5700-L shifter is a dependable upgrade for riders running a 2×10 drivetrain. Designed for the left side, it controls the front derailleur with precision. This model introduces internal cable routing, resulting in a cleaner handlebar setup and reduced cable friction, enhancing shifting performance. The ergonomic bracket shape and adjustable reach ensure comfort and adaptability for various hand sizes. This shifter is compatible with Shimano 105 10-speed groupsets and pairs with the ST-5700-R right shifter for a complete setup.

Constructed with a graphite fiber-reinforced plastic bracket body and an aluminum lever, the ST-5700-L lever balances strength and weight. Its Super SLR design improves braking efficiency by optimizing the lever pivot location, providing better modulation and control. The dual-control mechanism allows seamless shifting and braking without repositioning your hands, maintaining control during high-speed descents or sprints.