Good shifting requires a straight, stiff derailleur hanger. Original machined aluminum Cannondale derailleur hangers are much stronger than most aftermarket hangers for more durability and better performance. Cannondale strongly advises not trying to straighten hangers by bending with a hanger alignment tool.
This derailleur hanger has two versions, this is the original silver version. The new black version was phased in and the two versions are interchangeable.
Kit includes one derailleur hanger and two installation screws.