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    The Engineered ring, from Blackspire.

    • Modified shift gates and special profiles to allow 9/10 speed chains to shift flawlessly
    • Middle and outer chainrings have strategically placed stainless steel pins to further enhance shifting
    • Middle rings are cut from thick .190 material
    • Outer rings are cut from .160 material
    • For 9 or 10 speed drivetrains
    • Anodized black with Laser etched graphics

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