How to: Remove & replace Shimano HollowTech crankset - YouTube
ShimanoROAD on Twitter: "Already 10 years ago we introduced the Shimano Ultegra 6600 10-speed group set! #ThrowbackThursday http://t.co/LrI0punwvk" / Twitter
FS: Shimano Ultegra 6600 group set on velospace, the place for bikes
Is this the smartest groupset ever? Shimano Ultegra 6600 SL Edition - YouTube
Shimano Ultegra 6600 Groupos user reviews : 4 out of 5 - 7 reviews - roadbikereview.com