US$ 22.00
Weight: 190 g
By combining trickle down technology with a greater accessibility
Machined aluminum cups thread together directly into a T47 BB shell
yet offer traction when loaded in cornering and braking
Multiple Computer Mount Options
Shimano EW-JC304 Di2 Junction - 4 Port GSULT Weight: 190 gIntroduced 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