This is the universal derailleur hanger for Pivot bikes and fits most models. Fits: Pivot Mach 429 Carbon & Mach 429, Pivot Mach 5.7 Carbon & Mach 5.7 Pivot Firebird Pivot M4X Pivot Phoenix Carbon Pivot part #FP-RDH-TA-12MM-BLK-V3 Wheels MFG #305 Features: CNC machined from 6061 T6 Aluminum Anodized finish Model: NSB DH0104