The Di2 front derailleurs 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 The biggest difference you will notice is just how much quicker and effortlessly smoother shifting on the front chain rings is, even under load The difference in the effort and time to actuate the shift between mechanical and Di2 is truly staggering Full and semi synchronized shifting programmable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio 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 The front derailleur also trims automatically; the cage moves in response to the position of the rear derailleur on the cassette to ensure no chain rub and a quiet unobtrusive ride, enabling you to concentrate on the road ahead Designed to work with the wider gear pitch spacing Shimano chain sets without sacrificing shifting performance on bikes with 135 / 142 mm O.L.D. Cable tension is adjustable on the front derailleur Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available 11-speed E-tube Di2 compatible
- Fully and semi-synchronized switching program
- Clamp diameter reducible to 31.8 / 28.6 mm with supplied adapter
- Programmed control of the chain guide
- New design for larger chainring spacing without compromising shifting performance
- Upgraded to shift under high pedalling torque
- Improved clearance provide stability and balanced ergonomics
- Specifically designed pull arm for more direct and easy shifting
Shipping Note: Shipping to Alaska, Hawaii, PO Boxes, and APO addresses is not available for this item
Warranty: 90 Day Woot Limited Warranty
