Di2 EW-SD300-specific adapter — Specially-designed connector clips into the end of Shimano E-tube Di2 shift wire, and is perfectly sized to fit into frame holes as small as 6mm
Double-threaded barb — Securely attaches new housing or hydraulic hose to existing housing or hose
All guide cables have been shortened from 250cm (98'') to 188cm (74'')
The case has been upgraded to a round screw-top case, which fits the coiled-up cables better
Barbed adapter — Threads into the end of brake & shift cable housing as well as hydraulic brake hose
Reverse-polarity magnet — feeds into the opposite end and meets the leading cable in the middle, aiding in routing on frames with tricky interior shapes