All the same performance benefits of the Dura-Ace 7900 front derailleur is found on the Ultegra 6700 version. The only difference is that Dura Ace 7900 uses a titanium fixing bolt and slightly more machined surface to reduce the weight. This means the Ultegra 6700 front derailleur features the same two primary benefits.
First, there is no trimming necessary on the front big chainring. That means once you shift into your big ring you won't have any chain rub, regardless of what gear you are in! Just mash away in that 53x25! The second fundamental change is the optimized spring tension which allows for incredibly smooth shifting between the front and small chainrings. Shimano also reinforced the upper half of the front derailleur which provides a larger platform to move the cage during a shift.
|Top Gear Teeth||50-56T|
|Chain Stay Angle||61-66 degrees|
|Band Mount||28.6/31.8/34.9 mm|
|Chain Guide||Steel / Pearl Bright|
|Warranty||2 Year Manufacturer's Warranty|
This derailleur is so far the best I have ever had, it is very easy to adjust together with the ultegra 6700 crank. Shifting is very smooth and easy. Never rubs with the chain when in the big ring. When paired with the 6700 shifter lever it also has that midlevel shif that is just awesome when you crosschain a bit. Five stars easily.