The pekingduck rogues' gallery of customised CB1100s

[Bazbro_imp]

In that case, #5 comes the closest to a modern interpretation. And, it's not too annoying

Yes, I agree. Get rid of those "flat tracker style" h/bars and substitute clip-ons (at the very least 'Ace' bars) - then you'd be pretty nearly there... stripped down for racing, maybe a performance engine (who knows) and the lightest weight it could be. Nice.
Interesting ( I don't necessarily agree with everything).

Building A Cafe Racer...
https://www.bikeexif.com/building-a-cafe-racer
A really good likeness of what I'm talking about - a good cafe racer. It's only let down by a couple of points (in my opinion).
Whoever thought those exhaust pipes look good needs new bi-focals! This 'bike is crying out for 'swept-backs'.
Those engine cases/rocker covers are crying out to be polished - they were never black in the day, except for the tin chain cases.
That unprotected rear chain/sprocket is an abortion.
But otherwise, I think they've done a darned fine job. That Grimeca front stopper is a masterstroke!

https://www.bikeexif.com/triumph-bonneville-11