Moving from a 600cc to a 1000cc

[Burbler]

As you mentioned the RSV as a target, I will add to the topic that a twin tends to ride quite differently to an inline 4, my take on the differences is that the crazy top end power that a 4 gives up the rev range isn't there in the same way from a v twin but you do have lots of lower down torque to play with instead.

...and a triple gives you the best of both - has to be yellow though.