Thanks guys (and Dwight, your K0 looks magnificent!) as you know I'm a Harley fan with 2 sportsters currently, and a well set up sportster like my XLH1200 is a great handling bike, but the "Fake Harley" I was talking about was a Yamaha, or Kawasaki or Suzuki, or maybe even a Honda, I'm not sure which, but it definitely wasn't one of Milwaukie's finest.
The 1970 Sportster, which hadn't changed much since it's release in 1957 wasn't shamed by the CB750 at all, it had a similar 1/4 mile time, weighed less, and handled better. Unlike Triumph, BSA and Norton, Harley survived the arrival of the Japanese superbikes, due to their popularity in the US and around the world, and back then anything Japanese was not popular with older bikers who'd fought the Japanese in the pacific, and had no love for anything Japanese. My dad (a WW2 vet) hated them so much he wouldn't own anything Japanese, and when I rode my shiny new CB750 home in 1978, he took one look at it, and said, "The only good thing to come out of Japan was a mushroom cloud".
https://www.ultimatespecs.com/motorcycles-specs/harley-davidson/harley-davidson-xlch-900-sportster-1970https://bikez.com/motorcycles/honda_cb_750_f_1970.php#:~:text=General%20information%20%20%20%20Model%3A%20%20,design%20an%20...%20%2028%20more%20rows%20The "Fake Harley" rider was only a young guy, and probably doesn't understand that fake Harley riders aren't accepted by real Harley riders, or riders of Japanese sportsbikes or classics like ours, they're in their own little microcosm, and the used bike market reflects the disdain amongst most riders, fake harleys are cheap to buy used, because no-one that knows bikes and bike culture want them.
As motorcycles there's nothing wrong with them, but as Oscar Wilde famously wrote, "Imitation is the sincerest form of flattery", which sounds innocuous enough until you look up the quote and read the second line which states, "that mediocrity can pay to greatness". I'm guessing the Japanese "Big Four" motorcycle manufacturers didn't read the second line. The fact that the fake harley rider was dressed up as a "Badass" with his fake german helmet etc just made him look more of a clown when I blew past him on the mighty red beast. It was a great ride.