Save for the replacement of a spring with a servo motor, the Di2 rear derailleur will share many of the mechanical version's changes such as the carbon fibre pulley cage and 27T cog compatibility. A built- in mechanism protects the servo moto...(more)
COMPLETELY BLACK, THE SUPER RECORD REAR DERAILLEUR BOASTS INNOVATIVE PARALLELOGRAM GEOMETRY. THE RESULT IS OPERATION WITH ABSOLUTE PRECISION. The carbon outer plate wraps around the metal body and executes the commands from the Ergopower ...(more)
The SRAM RED Rear Derailleur has been designed to deliver the performance advantage you've come to expect from SRAM. With WiFLi, the rear derailleur lengthens its cage and gets a slight variation in geometry to accommodate an 11-32 cassette....(more)
The use of light alloy and composite reduces the weight while maintaining absolute operating precision. The dimensioning precision has eliminated any possible play between the parts right from the beginning. This is the fulcrum of the 11-spee...(more)
Programmed electronic shifting - fast and accurate. Never drops out of alignment.rash saver function. Inner cage impact protection. Cage moves automatically inwards on impact. Max. rear sprocket: 28T for wide-range gearing.
The rear derailleur further illustrates the brand's acceptance of carbon fiber with a carbon fiber pulley cage. The rear derailleur loses another 16 grams. The new mech is compatible with wider range cogsets and can accommodate up to a 28-too...(more)
