specialized giant cube cannondale Mavic Castelli endura altura
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  • Product Description

    • Upgrade or replacement rear derailleur dropouts; stiffer and more rigid to improve shifting performance

    • CNC machined from solid 6061 aluminium to exact tolerances

    • Stiffer than any original equipment hanger whichimproves shifting performance

    • Still breaks before your frame does to perform its main function

    • All hangers come with instructions and hardware

    • Direct replacement for original equipment with guaranteed fit

    • Black anodised for extra scratch and damage resistance

    • Laser etched for easy part identification