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Shimano Di2 Ultegra FD-6870 Front Der Review

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Shimano Di2 Ultegra FD-6870 Front Der Description

In true Ultegra fashion, the 6870 series takes the pro tested Di2 technology from its steeper Dura-Ace older brother, to a price that non-pros can sink their teeth into. Di2 electronic shifting enables a whole new level of riding that cannot be experienced through traditional mechanical shifting. The Ultegra 6870 Front Derailleur utilizes precision actuators and a powerful motor to move the cage swiftly and smoothly for fast, silent, and accurate shifts every time. The self trimming technology enables the chain to be lined up optimally with the front derailleur no matter what gear you're turning over in the cassette. This completely eliminates excruciating chain rub, enhancing overall power transfer and responsiveness. Whether you're spinning your lowest gear up a mountain, mashing the pedals to the finish line, or cross-chaining, simply tap the button and the chain effortlessly glides onto the big ring or is smoothly guided down to the inner ring flawlessly. On top of it all, there are no cables to wear out or become contaminated. The Ultegra 6870 Di2 Front Derailleur is the quintessence of trickle-down technology done right! Features Di2 Electronic Shifting No cables to wear out or become contaminated Smooth effortless shifting under load CPU controlled automatic trimming Down-shifts in two steps to help eliminate dropped chains Plated cage Plated inner & painted outer link Includes frame support plates Chain Compatibility: Shimano 11 Crank-FD Type: Road Compact , Road Double Derailleur Capacity: 16Chain line: 43.5mm FD/Shifter Compatibility: Shimano Ultegra Di2 Front Derailleur Cable Pull: Bottom Front Derailleur Clamp: Braze-on Front Derailleur Style: TraditionalChain Stay Angle: 61-66 degree Top Gear Teeth: 46-53 teeth Weight (g) : 155 g Please Note: All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions. To update the firmware on your components, use the Di2 system checker from Shimano by clicking here