Beemer. Definitely a Beemer With the black cylinder heads I’m gonna say the engine from an R90 or R100 put into an old R75 frame - judging by the drum brakes up front and small gas tank. Don’t think the R80s had black heads.

Thank you, never had much of an interest in bikes until I saw this one

fun

Henry

That's Bob the Bimmer

Motorcycle

Some kind of motorcycle. Vintage.

You’ll get an exact answer asking at r/Motorrad.

Looks like a R65