Wheels Manufacturing Derailleur Hanger 391 MFPN=HSA-IB42AOOX-S From Rossi:

From Rossi:

The colors are not the colors in the jersey

} Concave design allows foot to sink in resulting in a supportive

} Carbon rim engineered with the compliance of alloy and that lively feel of carbon

4" compound 3C MaxxGrip bead folding type tubeless color black weight 1225g

Wheels Manufacturing Derailleur Hanger 391 MFPN=HSA-IB42AOOX-S From Rossi:Wheels Manufacturing Derailleur Hanger 391. 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. CNC