not 100% sure but I believe the K pegs ar emounted to the frame like the C, which would mean the F sport kits don't work here. If you do a search on this site there was amember working out rearsets for a 79 DOHC K which is the same bike. I think his name was Trefmawr or something like that.
good lord dont buy the raask rearsets. the quality of the materials is atrocious. i got a set for me 750k. the arm that goes onto the splined brake rod cracked the first time i put it on. the actual brackets are a crap quality casting too.
A doctrine fostered by a delusional, illogical, liberal minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.
My DOHC 750F came with clubman's (no, they didn't hit the tank)(yes the previous owner may have been gay). The other's are right about the riding position without rearsets being uncomfortable... I changed mine to superbike bars after a couple seasons. Now I just pretend I'm Eddie or Freddie in their early years.