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
Why your Shimano Ultegra shifter doesn't work. | Troubleshooting for Shimano Ultegra ST-6700 10 speed shifter. | By Cycling & Mountain Biking | Hello friends, it's been a while today, Shimano Ultegra.
How to Thoroughly Destroy a Shimano 105 STI 5600 Flight Deck Left Shifter - Instructables