This starter clutch bearing is compatible with specific motorcycle models including 450 EXC-F (2017–2020), 450 XC-F (2015–2020), 450 SX-F (2013–2020), 500 EXC-F (2017–2020), 690 R (2007–2020), 400 XC-W (2009–2010), 450 XC-W (2009–2016), 500 XC-W (2012–2016), 530 XC-W (2009–2011), 450 EXC (2009–2011), 500 EXC (2012–2016), and 530 EXC (2009–2011).It matches OEM part numbers 75040026000 and 76640026000 for direct replacement.Constructed from metal materials, it is designed to handle thermal and mechanical stress in off-road environments.Please confirm compatibility with your specific vehicle model and year before installation.