Wheels Manufacturing hangers are stiffer than almost any OEM hanger, which improves durability and shifting performance.See below "Tech" link for known fitmentsOEM 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 hardwareCNC machined 6061 aluminumBlack anodized finishMade in the USA"FitmentOpenONE+UPUPPER" Wheels Manufacturing Hangers with No Hardware Derailleur Hangers UPC: 811079025746