Derailleur Hanger 16All Wheels Manufacturing replacement derailleur hangers are produced in our Colorado shop to exacting tolerances. CNC machined 6061 aluminum Black anodized finish Attaches to frame with (2) M3x10 Socket Head Cap Screws Cannondale Part #A239X EBO Note: DROPOUT 16 has 14. 33mm between the two holes (center to center) and 6. 81mm between the two vertical plates.
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