Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 ModelNumber=K5283 8 Clamp +/-0 1 1/8"

8 Clamp +/-0 1 1/8" Aluminum White

Color Matte Black Bottle Type Standard Access Style Top Weight 28 Mount Type Bolt-On Material Carbon Defined Color Black

Arch S2 wheelsets have the versatility to handle a wide range of riding conditions and are the ideal upgrade for Trail AM Enduro and eBikes

This is the #1 tire choice for Tour Divide the longest mountain bike race in the world stretching from Canada to Mexico along the Rockies

Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 ModelNumber=K5283 8 Clamp +/-0 1 1/8"Shimano EW JC304 Di2 Junction Box 4 Ports Use With EW SD300. 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 firmware from http: e