Wheels Manufacturing hangers are stiffer than almost any OEM hanger, which improves durability and shifting performance. FEATURES : 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 CNC machined 6061 aluminum Black anodized finish Made in the USA SPECS : Fits Brand: Specialized Specialized 1999-2000 S-Works M4 HT Specialized 1999-2000 Stumpjumper M2 HT Specialized 2000-2001 S-Works CX Specialized 2001 CX Comp Specialized 2001 Enduro HT Specialized 2001 S-Works M4 FSRxc Specialized 2001 S-Works M4 HT Specialized 2001 S-Works SL Specialized 2001-2002 Stumpjumper FSRxc Specialized 2001-2002 Stumpjumper M4 HT Specialized 2002 S-Works E5 Aerotec Specialized 2002 S-Works M5 FSRxc Specialized 2002 S-Works M5 HT Specialized 2003 Rockhopper FSRxc Specialized 2003 Rockhopper HT Specialized 2003 Stumpjumper FSRxc Specialized 2004 FSRxc