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If memory serves, all the two strokes I started out on has it.T 500, GT 380/550/750I think my GS 750 but getting a bit hazy after that, they began to have disc brake rear ends.
I've had a few sssa bmw's. The VFR's have used the patented and licensed Elf racing design (eccentric spool chain adj.). The Gilera CX125 uses the same Elf design at the rear. The front looks a lot like an aircraft nose wheel. R3~
I had all of those except the Water Buffalo. Don't remember anything special about the rear wheel/sprocket set up on any of them. But it's been many decades.