NEW Shimano EW-RS910 Di2 Drop Handlebar/Internal Frame Junction Box - 2-Port with Charging chain_9speed The Duet is a traditional

The Duet is a traditional ding-dong bell with the beautifully resonant ring of solid brass

and valve core tool

facilitating correct posture when cycling

Original equipment on SRAM and Truvativ cranks

NEW Shimano EW-RS910 Di2 Drop Handlebar/Internal Frame Junction Box - 2-Port with Charging chain_9speed The Duet is a traditionalShimano Di2 Frame Junction Box Frame Junction Box connects via SD50 E tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com