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CRF 450R /450X 2002-2016

CRF 450R 2002-2003 OEM Sprocket Sizes - 13T Front / 50T Rear - - Chain Length - 520 Pitch / 114 Links
CRF 450R 2004-2016 OEM Sprocket Sizes - 13T Front / 48T Rear - - Chain Length - 520 Pitch / 114 Links
CRF 450X 2005-2016 OEM Sprocket Sizes - 13T Front / 51T Rear - - Chain Length - 520 Pitch / 114 Links