Wheels MFG

Derailleur Hanger - 521

Wheels Manufacturing hangers are stiffer than almost any OEM hanger, which improves durability and shifting performance.

• OEM hangers are only produced by a handful of manufacturers, mostly in Taiwan and China. As a result, you will see many bikes with exactly the same hanger. Bicycle manufacturers may make mid year changes. Please use the hanger photos to select the proper hanger for your application.
• These hangers DO NOT INCLUDE attachment hardware with the exception of QBP # FS1561 (DROPOUT 399)
• CNC machined 6061 aluminum
• Made in the USA
• Attaches to frame with 2 M6x12mm Socket Head, M5x22mm Socket Head
• Fits Specialized model: Fuse (2020 )
• Replacement for Specialized part S196000002