Dura-Ace moves to the next generation. Tested in competition & taken to victory by pro riders in all conditions, including the 2012 Tour de France Team Sky. Cutting edge technology for the ultimate in control & confidence. The 11-speed Dura-Ace rear derailleur has been redesigned for lighter operation with the help of new low-friction polymer-coated cables. Shifting effort is now more even across the range, with similar force required at both ends of the cassette. Key
Features: enhanced operation gives more uniform shifting throughout the range. High tolerance cold forged aluminium link plates & body construction provide for extremely light weight, strength & durability. High rigidity wide outer link plates & pulley body to increase pivot joint rigidity. Sealed pulley bearings reduce friction & rotate silky smooth, increasing efficiently. Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting. Pulleys are made from tough Du Pont Zytel for longer life & less chain noise. Able to operate with wide gear ratios up to a 28 tooth cassette sprocket. Hard wearing Dura-Ace finish & graphics for long lasting good looks. Fully 11-speed compatible.