The Ultegra 6870 Di2 front derailleur's operation is pioneering, smooth shifting is guaranteed thanks to a microchip communication link with the gear levers. What's more shifting the rear derailleur automatically trims the front derailleur.
|No. Of Chainrings:||Double|
|Front Derailleur Mount:||Band On - 31.8mm|
|Front Derailleur:||Shimano Ultegra|
The biggest difference you will notice is just how much quicker and effortlessly smoother shifting on the front chainrings even under load, the effort and time to actuate the shift between mechanical and Di2 is truly staggering. With the removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts.
Shimano are the makers of the world's most well known cycle component brand. Established in 1921 when the first cycle freewheel was forged. Shimano produce drivetrains, wheels, pedals, shoes, cycling clothing and pretty much every Shimano cycle accessory you can think of! Famous for their top end products ridden by the pro's, Dura-Ace and XTR, which cover both road and MTB's. At Shimano, they're doing everything they can to respond to heightened environmental concerns. Shimano are proud to be a producer of bicycle components that help people to enjoy outdoor sports and interact with nature through healthy non-polluting activities. In their 87 plus years of existence Shimano have accumulated a wealth of technology and product development and expertise that serves as the driving force behind their continually evolving product line.
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