My first experience with motorbikes began in the mid to late 70s.
I started on a 125 honda single progressing through the following bikes,
Honda CB200.
Kawasaki 400 4 stroke twin, sluggish.
Yamaha RD250 twin , Nice bike.
Honda CB750 F1 , Even better but heavy.
Then later on a 650 twin Yamaha custom. Many a happy hour was spent on a complete rebuild.
The most recent bike is a Yamaha Fazer 600