Ultegra FC-6600 Series
Although Ultegra shares it's engineering lineage with Dura-Ace, it offers a new level of performance with a sleek design and greatly enhanced feel, giving Ultegra it's own unique identity.
Combining race-proven hollow forging technology and an integrated crankset & bottom bracket, the Hollowtech ll crank reduces weight while drastically increasing rigidity as well as power transfer. The crank arms themselves are hollow, which provides strength and rigidity while keeping the combined weight low. Circling this amazing crank set are SG-X chainrings. Built with specially designed tooth profiles, pick-up spikes and ramps, SG-X enables the front derailer to shift super smooth, giving you the rider, easy, trouble free, and quiet shifts so you can focus on going that extra mile.
You cannot match the more affordable Ultegra, with double AND triple options available.
* BB sold separately
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