Electronic Derailleur - Rear
As the front derailleurs control the chainrings at the front of your drive train, the rear derailleur controls which gear you are in by moving the chain to different cogs of your cassette. As with all the electronic groupset components, the performance is breath-taking. Smooth, precise shifting between gears - fast and responsive to your needs, they facilitate a marked increase in shifting efficiency.
Items 1-3 of 3