How Does Shimano Di2 Synchro Shifting Work? | Electronic Bike Gear Shifts Explained | Smart electronic bike gears, how do they even work? Do they change from big to small ring without
Shimano Di2 Synchro Shifting Explained
Shimano Di2 Synchro Shifting Explained
What is Di2 synchro shift?
Shimano Di2 Synchro Shift for Triathletes - Fit Werx