EPS V4 External Interface

• The heart and brain of the system: it handles the communication between derailleur and shifters, system diagnostic, zero setting and ride setting. • Dual ANT+ and BlueTooth LE antennas allow communication with most GPS computers & smart phones • Synchro Shift option to enable automatic front shifting when reaching specific ratios • Easy access to charging port • IP67 waterproof rating • Weight: 33g (including cables)