I have two of the volumes in english...you can buy them through comic book houses in the UK. Solido also makes models of the bikes and I am staring at the cb750 one on my desk right now.
That still does not compare to the collection of parts I have to make a fullsize JoeBar "Edouard Bracame" cb750. If I ever get around to putting it together.
There is a second gen Joe Bar team too...mostly GSXRs and such but one guy rides a v-max.