The collapse seems to have more to do with factors other than a straight bike to bike comparison.
Forty years later we can still compare the bikes easily and Norton comes out on top by a wide margin.
If I am going on a long ride through the mountains, or headed to California on the 101 or in a hurry on the I-5, do I want to take the CB 750 or the 850 Commando?
-Compared to the Honda, The Norton has something like 40% more torque on tap per pound of machine and rider at 70 MPH. This is really nice all of the time, but especially when carrying a passenger and luggage.
- The Norton is completely smooth at highway speeds. At 70-75 MPH , the bar end mirrors on my MK3 850 are as clear as the rearview mirror in a new car. Even when new, my CB750 produced a horrible tingling vibration at highway speeds. It buzzed me and made the mirrors useless at speed. That alone is enough to put me off riding a machine today, though back in the seventies when almost all large motorcycles vibrated badly, we tolerated it.
- The Norton is a sweet handling bike. My memory of the CB750 is that it was a like other Japanese bikes from back then, a bit of a heavy ill handling pig to ride on challenging roads.
If I had a good CB 750 in the shed today , it would mainly be something to look at once in awhile, not something that would get ridden much at all with the Norton sitting there ready to go.
Glen