NOT FOR 1986 AND NEWER ATC200X outside black rubber is 26mm screen is 18mm at base height is 29mm 309Z @ *SPRING OIL SCREEN ATC185 ATC200 /S/M/ES/X 7/19M (310A)Fits: honda atc185 1980 honda atc185s 1981, 1982, 1983 honda atc200 1981, 1982, 1983 honda atc200e 1982, 1983 honda atc200es 1984 honda atc200m 1984, 1985 honda atc200s 1984, 1985, 1986 honda atc200x 1983, 1984, 1985 honda cb100 1970 honda cb100k1 1971 honda cb100k2 1972 honda cb125s 1973, 1976, 1978, 1979, 1980, 1981, 1982, 1984, 1985 honda cb125s1 1974 honda cb125s2 1975 honda ch125 1984 honda ch150 1985, 1987 honda ch150d 1985, 1986 honda cl100 1970 honda cl100k1 1971 honda cl100k2 1972 honda cl100s 1971 honda cl100s2 1972 honda cl100s3 1973 honda cl125s 1973 honda cl125s1 1974 honda crf230l 2008, 2009 honda crf230m 2009 honda ct125 1977 honda fsc600 2002 honda fsc600a 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 honda fsc600d 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 honda nx125 1988, 1989, 1990 honda sl100 1970 honda sl100k1 1971 honda sl100k2 1972 honda sl100k3 1973 honda sl125 1971 honda sl125k1 1972 honda sl125k2 1973 honda tl125 1973 honda tl125k1 1974 honda tl125k2 1975 honda tl125s 1976 honda tl250 1975, 1976 honda tlr200 1986, 1987 honda trx200 1984 honda xl100 1974, 1976, 1977, 1978 honda xl100k1 1975 honda xl125 1974, 1976, 1977, 1978 honda xl125k1 1975 honda xl125s 1979, 1980, 1981, 1982, 1984, 1985 honda xl185s 1979, 1980, 1981, 1982, 1983 honda xl200r 1983, 1984 honda xl250 1972, 1976 honda xl250k1 1974 honda xl250k2 1975 honda xl350 1974, 1976, 1977, 1978 honda xl350k1 1975 honda xr185 1979 honda xr200 1980, 1981, 1982, 1983, 1984 honda xr200r 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1990, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 310A