Shimano EW-RS910 Di2 Drop Handlebar/Internal Frame Junction Box - 2-Port Charging Tri-Flow Two fully waterproof roll top

Two fully waterproof roll top compartments provide 10 litres of capacity

Value oriented disc hub with forged alloy shell steel axle and hardware

SRAM's most affordable ten speed chain offers most of the strength and all of the shifting performance of other models

Great match for SRAM 1x drivetrains

Spring Weight 450+

Shimano EW-RS910 Di2 Drop Handlebar/Internal Frame Junction Box - 2-Port Charging Tri-Flow Two fully waterproof roll topShimano EW RS910 Di2 Drop Handlebar Internal Frame Junction Box 2 Port with Charging. Shimano Di2 Frame Junction BoxFrame 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