Derailleur Hanger 323 – 6061 Aluminum, Specialized S172600001, M12x1.0 Thru Axle

This replacement derailleur hanger 323 is CNC machined from 6061 aluminum in our Colorado shop to exacting tolerances. It features a black anodized finish, attaches with one M3x6 socket head screw (not included), is compatible with M12x1.0 thru axle frames, and replaces Specialized part #S172600001. Includes both sides of the derailleur hanger. Note: some 2018 Stumpjumper FSR models changed mid-year from Derailleur Hanger 301 — compare visually before ordering.