Shimano RD-R9100 Dura-Ace 11-Speed Rear Derailleur

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·  Dura-Ace rear derailleur with lightweight carbon cage and wide link design gives quick accurate shifts, and unmatched drivetrain efficiency

·  Full carbon fibre inner and outer pulley plates enhance rigidity and significantly reduce weight

·  Low profile Shadow derailleur design

·  High tolerance cold forged aluminium link plates and body construction provide for extremely light weight, strength and durability

·  High rigidity wide outer link plates the pulley body to increase pivot joint rigidity

·  Sealed pulley bearings reduce friction and rotate silky smooth increasing efficiently

·  Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting

·  Pulleys are made of tough DuPont Zytel for longer life and less chain noise

·  With a total capacity of 33 tooth, it is able to operate with wide gear ratios up to a 30 tooth cassette sprocket

·  Hard wearing Dura-Ace finish and graphics for long lasting good looks

·  11-speed compatible

·  Weight: 166 grams