Shimano 6600 ULTEGRA ST-6600 6603 3x10-Spd STI FlightDeck Levers EXCELLENT USED | eBay
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
SHIMANO DURA-ACE FLIGHT DECK SHIFTER NAME PLATE COVER, NEW | eBay