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  • Product description

    The MRP Ultraspeed/World Cup chain guide is a 3-Arm Boomerang back plate that is compatible with both System 1 and System 2 Ultra-Speed or World Cup chain devices.

    Key Features:

    • CNC Alloy.
    • Fits System 1/System 2
    • Ultra-Speed (44-50T) or World Cup (36-44T) suitable.
    • Std or ISCG fit.

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