Shop all Shimano | Shop all Electronic Gear Shifting
Shimano's SM-EWWU111A D-Fly wireless transmitter connects riders to their Di2 data to monitor Di2 gear position, battery life, as well as some other common rider data functions.
365 DAY RETURNS
Its OK to change your mind!
OUR CUSTOMERS LOVE US
4.8 Satisfaction Rating from Shopper Approved.
WE ARE EXPERTS
selling only the best cycling gear since 1986