CANNONDALE K33009 SystemSix SuperSix Topstone double lead derailleur mech hanger

List of compatible Cannondale bikes: (Part Number K33009). Cannondale SystemSix Carbon (with Speed Release Axle) – 2019. Cannondale SystemSix HM (with Speed Release Axle) – 2019. Cannondale SystemSix 2019 2020.

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