A 600 cc new crotch rocket will eat most bike alive from 10 years ago regardless of cc. When I have a 750 Ninja and going 240 km, and a 600 CBR passes me like I'm standing still...yikes. I personally don't think 600 cc is to small, especially not for a new rider. But it totally depends on the size ande skill of the rider.
A Yammy 600 will pull the front tire off of the ground with a quick roll on in 2nd gear, so if that's pussy then you and I have 2 different vocabularies.
Then again if your talking cruiser then yeah that's small but with a rocket, it's apples and oranges.
