Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 MFPN=099849 Bikes are fun

Bikes are fun

} WHEEL BEARING SHIELD FRONT OR REAR ZIPP 88/188 V6

Wide strong and light Brake Compatibility Disc Only Rim Width (Internal) 25 Brake Track None Manufacturer Spec ERD (mm) 607 Valve Presta Color Black Weight 440 Wheel Size 29" Defined Color Black ISO Diameter 622 / Road / 29" Hub Drilling 32 Rim Material Alloy Tire Type Tubeless Ready Rim Center Offset (mm) 0 Hub Count 32H

5 Upper Cup 42mm Lower Cup 52mm Primary Color Purple SHIS Upper IS42/28

OR - Vee`s OverRide technology offers 3 times the puncture protection over previous non-OverRide models

Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 MFPN=099849 Bikes are funShimano 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 tubeproject. shimano. com