Wiseco Main Bearing Kit (2) 30 x 72 x 19mmWiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and reliable service. This Part Fits: Year Make Model Submodel 2013 2015 Gas Gas EC 450F Base 2005 2007 Suzuki RMZ450 Base 1998 2000 Yamaha WR400F Base 2001 2002 Yamaha WR426F Base 2003 2025 Yamaha WR450F Base 2004 2013 Yamaha YFZ450 Base 2006 2007 Yamaha