Shimano Ultegra RD-6600 Rear Derailleur Images and Manual

Last Updated on July 15, 2023 by FAB Jim The Cyclist

The Shimano Ultegra RD-6600 rear derailleur for road bikes.  This is an older model and at the time it was the second-best road derailleur in the Shimano line up right behind Dura ace.  I’m not completely sure about production dates for this model, but the one pictured came on my 2008 Fuji Cross Comp.  Still works great, it is light and for 10 speeds.  Quick and crisp shifting, a high-quality component.

Shimano Ultegra RD-6600 Rear Derailleur
RD-6600 Parts Diagram
Installation Instructions

Published by FAB Jim The Cyclist

Jim has over 40 years of experience with bicycles and loves road and mountain biking and just going for calm cruises. He is a mechanic who has built custom bikes and is also very interested in bike history.

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