Manetas de cambio de doble control Shimano Ultegra Di2 ST-6870

Shimano Ultegra Di2 ST-6870 Dual Control Shifters pair Shimano's wired Di2 electronic shifting with mechanical brake actuation, a previous-generation setup from the Ultegra 6870 groupset that still delivers crisp, consistent shifts without the maintenance of cable-actuated derailleurs. Each lever houses two shift buttons that fire the front and rear derailleurs electronically, while the brake lever itself pulls a standard mechanical caliper, making this a straightforward upgrade path for riders on rim brake bikes who want electronic shifting without switching to hydraulic brakes.

Each lever includes two E-Tube ports plus a satellite shifter port, so riders can add a sprint shifter near the stem or drops for shifting from an aero position without moving hands off the bar. Lever reach is adjustable to fit smaller or larger hands, and the clamp band fits standard 23.8-24.2mm drop bars. Unlike later Di2 generations, these levers don't have shift buttons on top of the hoods, keeping the shape close to a traditional mechanical STI lever.

At roughly 166 grams per lever, the ST-6870 set adds meaningful function without much weight penalty over 11-speed mechanical shifters. This is a previous-generation Di2 lever, since replaced by newer Ultegra electronic groupsets, which is reflected in the discounted final-sale price. It's a strong option for riders building up a rim brake road bike who want dependable electronic shifting and don't need the latest wireless or disc brake-specific hardware.