Shimano EW-JC200 Di2 2 Port Junction Women's Clothing-Bike-Jackets-Vests Outer plate design has been

Outer plate design has been developed to reduce the chance of chain suck

Automatic and wireless downloads and workout plans

The Racing Long Top Tube Pack is designed for ultra-distance cycling competition and the needs of time-conscious riders for who need to carry a bit more

while providing easy monitoring by supporters and floatation if necessary when fatigued or anxious

Magnesium Carbonate

Shimano EW-JC200 Di2 2 Port Junction Women's Clothing-Bike-Jackets-Vests Outer plate design has beenShimano's Di2 E Tube system provides unmatched shift performance, reliability and rider customization. Along with enhanced Di2 functionality, expanded E Tube wire options and junction boxes, the EW JC200 E Tube Junction Port adapter, delivers improved wiring configurations and wireless connectivity to Shimano's E Tube Project. EW JC200 Junction Port features two female Di2 ports, allowing E Tube cables to be connected for extension purposes.