Replacement derailleur hanger for Specialized Diverge, CruX and Roubaix Carbon with quick release rear hub. This is not a complete QR conversion kit. It is only a replacement hanger. For a replacement hanger when using the 135×12 SCS thru-axle wheel, use Wheels Mfg DROPOUT-284. All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. – CNC machined 6061 aluminum – Black anodized finish – (1) M5x10 Socket head screw included