Replacement derailleur hanger for Specialized Diverge, CruX, and Roubaix Carbon SCS frames with NON-SCS 135 x 12mm thru-axle hubs. Note: This hanger is not the same as our DROPOUT-284, which is for use with SCS 142x12 wheels. - All Wheels Mfg. replacement derailleur hangers are produced in Colorado to exacting tolerances - CNC machined 6061 aluminum - Black anodized finish - Attaches to frame with (1) M5x10 Socket Head Screw (sold separately)