HANG IT UPThe Cannondale Rear Derailleur Hanger KP284 is compatible with many Cannondale Trail SL 29ers. The design of the hanger has to be stiff enough to hold in place the derailleur regardless of outside stress while switching gears and riding in general during the roughest conditions. Appears Black, comes with mounting hardware.-a FEATURESCompatible with the Cannondale Trail SL 29erThis solid derailleur hanger is designed to keep the derailleur stabilized during the roughest riding conditionsComes with hanger and mounting hardware (2 screws)