K100rt Engine Guards?

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Does Anyone In Beemerland Know If Engine Guards Off A 1986k100rt Will Fit A 1958k100rt? There Is A Pair For Sale And It Endfs In 3 Hours.........

1985 Bmw K100rt
1972 Triumph Bonneville

1976 Triumph 750 Tiger (sold)
1970 Bsa 500 (sold)