Wheels Manufacturing Derailleur Hanger 391 MFPN=HSA-IB42AOOX-S Two sizes (XS-S and M-XL)

Two sizes (XS-S and M-XL) for ideal fit

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

The Sturmey Archer hub automatically changes from low to high gear at approximately 7 mph

Materials and care

Wheels Manufacturing Derailleur Hanger 391 MFPN=HSA-IB42AOOX-S Two sizes (XS-S and M-XL)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