Shimano EW-JC304 Di2 Junction - 4 Port PNS drop-nose design provides superior support

drop-nose design provides superior support when adopting a powerful

The 2-way release design means you can move to a harder gear by pushing or pulling the up shifter and with its ball bearing construction

Muc-Off Drivetrain Cleaner is fully biodegradable and is safe to be disposed of down the drain if you previously used one of our bio chain lubes

and extend the life of the chain and other expensive drivetrain parts

Suitable for MTB racing

Shimano EW-JC304 Di2 Junction - 4 Port PNS drop-nose design provides superior supportIntroduced with the Shimano EP800 series, the SD300 E Tube components form the interface between compatible STePS parts and expand the functional range of future Di2 systems. Shimano Di2 E Tube junction for the connection of 2 EW SD300 wires. Fixing by plug connection. Mfr Claimed Weight TBC