specialized giant cube cannondale Mavic Castelli endura altura
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  • Product description

    The Shimano Dura-Ace 10 Speed Rear Derailleur RD7900 is a high quality Dura-Ace rear mech with lightweight carbon cage and wide link design gives quick accurate shifts, and unmatched drivetrain efficiency. Suitable for all Shimano 10 speed drivetrains.

    Key Features:

    • Full carbon fibre inner and outer pulley plates enhance rigidity in a much lighter 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 28 tooth cassette sprocket
    • Hard wearing Dura-Ace finish and graphics for long lasting good looks
    • 10-speed compatible
    • Weight: 166 grams

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