TheShimanoR9100Dura Ace 11-Speed RearDerailleurSSfeatures full carbonfibreinner and outer pulley plates to enhance rigidity and reduce weight. ShimanoR9100Dura Ace 11-Speed RearDerailleurSS Features 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 ...
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