Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 CheckoutTitle=Shimano GRX RX810 Chainring - 31t Disc Center Lock Wheel Diameter/ISO

Disc Center Lock Wheel Diameter/ISO 700C / 622 Wheel Tire Type Tubeless Ready Rim inner width range 22-27

1mm foam padding

} size: 26 - 29" clip-on bracket cone clamping also for suspension forks

5mm Lock Type Key

Reinforced toe and heel to be worn with cycling shoes

Shimano EW-JC304 Di2 Junction Box - 4 Ports Use With EW-SD300 CheckoutTitle=Shimano GRX RX810 Chainring - 31t Disc Center Lock Wheel Diameter/ISOShimano 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