Shimano EW-RS910 Di2 Drop Handlebar Junction Box - 2-Port Charging Mam Jam's Candle Company Ultra-light hollow carbon fiber crankarms

Ultra-light hollow carbon fiber crankarms are 29g lighter than previous models

Experience the ultimate indulgence with Groveland's Exquisite Sampler Gift Box

Approved by ASTM and CPSIA for added peace of mind

along with options for all-weather bags made from military-grade materials

Effortless installation process for quick upgrades

Shimano EW-RS910 Di2 Drop Handlebar Junction Box - 2-Port Charging Mam Jam's Candle Company Ultra-light hollow carbon fiber crankarmsElevate your cycling experience with the Shimano EW RS910 Di2 Drop Handlebar Junction Box. Designed for seamless integration and optimal performance, this junction box ensures your bicycle's electronic components communicate flawlessly. Connects via SD50 E tube wires to multiple points: front derailleur, rear derailleur, cockpit junction box, and battery mount. Compatible with all Di2 components requiring the same firmware version for reliable