Shimano FD-7970 Dura-Ace Di2 Front Derailleur Braze On Double

Product Description

The difference in the effort & time taken for front shifts between Dura-Ace mechanical & Di 2 is truly staggering: with programmed automatic motion at the touch of a switch the Dura-Ace Di 2 front derailleur isquick smooth & effortless making for unmatched drivetrain efficiency The biggest difference you will notice is just how much quicker & effortlessly smoother shifting on the front chainrings is even under load The difference in the effort & time to actuate the shift between mechanical & Di 2 is truly staggering The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates corrosion & 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 & a quiet unobtrusive ride enabling you to concentrate on the road ahead High tolerance cold forged aluminium & composite construction Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available 10-speed Dura-Ace Di 2 compatible Front derailleur weight is 124 grams