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The thin leading edge chamfered design gives you maximum clearance to reduce pedal strikes and deflect off trail obstacle
FULL PIN technology uses eleven lightweight
Improved driving efficiency and stable shifting
It' also 95% biodegradable and is ideal for Road
with added structural reinforcement via a shatter-resistant AURA reinforcing arch
Shimano Di2 Junction A EW90A 3 Port 45 The thin leading edge chamferedSHIMANO's SM EW90 A 3 port Junction A mounts neatly to the bike stem and connects with E TUBE wires from DI2 shifters and the downtube junction wire. The SM EW90 junction box features an integrated battery level indicator, charging port, and gear index setup switch.
