All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Norco part #959375-16 - (1) M8-DROP192BOLT included Notes: - For use with direct mount Shimano XTR, XT or SLX rear derailleur. - If using direct mount Shimano Saint derailleur, use Wheels Mfg DROPOUT-276. - If using any non-direct mount rear derailleur use Wheels Mfg DROPOUT-202.