Wiseco 35 x 80 x 21mm 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 1982 Honda XL500R Base 1983 1987 Honda XL600R Base 1981 1984 Honda XR500R Base 1985 2000 Honda XR600R Base 1984 1986 Yamaha TT600 Base 1984 1995 Yamaha XT600 Base