The Shimano 105 ST-5700-R is a 10-speed right-side Dual Control Lever designed for road bikes, integrating both braking and shifting functions. Part of the 5700 series introduced in 2010, it marked a significant update to the 105 lineup by incorporating internal cable routing, which not only provides a cleaner handlebar appearance but also enhances aerodynamics and reduces cable exposure. The lever features a graphite fiber-reinforced plastic bracket body and an aluminum main lever, balancing strength and weight.

Ergonomically, the ST-5700-R unit offers an adjustable reach, accommodating riders with varying hand sizes and preferences. The Super SLR (Shimano Linear Response) brake lever pivot design improves braking efficiency by reducing friction and enhancing modulation. This lever is compatible with Shimano 10-speed road drivetrains and is best paired with Super SLR-compatible brake calipers for optimal performance.