When I think of some of the peaky two strokes I had, even just toodling around you had to rev the snot out of the buggers. I remember the two stroke I raced, you took off or taped off anything that could smash and put debris on track. Removed speedo but obviously kept tach, but taped most of it up, just enough to see maybe 6 to 9 grand. It had about 2 grand of decent powerband, typical 2 banger, but why I'm very used to fast and exact shifting timing, even on bicycles, all these decades later.
My old Triumph 500s had solid torque from about 3000 all the way up. No red line was published but the horse power rating was taken at 7850, so I considered that my red line. Fourth gear on the highway was about 4400 rpm. With that wide a power band, you only needed 4 gears. Did not need much torque when city driving, often drove around at 2200 to 2500 rpm. With only four gears I always knew what gear I was in.
But on a bicycle, I do not have that wide of a power band, so I like having a triple crank and with that many gears I can't keep track of what gear I am in. But I usually know which chainring I am on.