Whats Shimano Flight Deck all about? There is a ribbon cable inside and what seems to be a button by the thumb of the shifter. What is it for? : r/bikewrench
Repair of Shimano Drop-Bar STI Brake-Shift Levers
Di2 Shimano® Electronic Intelligent System Installation | Park Tool
Shimano Ultegra Flight Deck ST-6600 2x10s Control Levers Shifters L+R set junk | eBay
SHIMANO ST-6510 SERVICE INSTRUCTIONS MANUAL Pdf Download | ManualsLib