SHIMANO SD300/SD50 CONVERSION ADAPTER EW-AD305Shimano SD300 Introduced 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. Using the Shimano EW AD305 conversion adapter, it is possible to connect an electronic EW SD300 wire to EW SD50 cable systems.

Even during maximal efforts up a climb or racing a friend

Shimano Altus SL-M310 3/8 3X8 Speed Trigger Shifter Dual Lever Shifters Set US

It's compatible with a 12x100 axle up front

SERIES                          : GRX DI2

This significantly increases stiffness and stability

Body cover material Stainless steel

Crank Intended Use Mountain

Total capacity                 : 38T

chain guide: aluminium (plated)

flexible and lightweight TR90 frame

6      : X (w/ S size adapter)

dual compound