Wiseco 20 x 52 x 15mm Main BearingWiseco 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 1979 Honda CR125R Base 2004 2009 Honda CRF50F Base 2004 2009 Honda CRF70F Base 2000 2003 Honda XR50R Base 1997 2003 Honda XR70R Base 1983 1988 Kawasaki KDX80 Base 1995 2009,2011 2016 Kawasaki KX100