'Bigger' is relative. For several years I mostly rode a XT-225 DS. It worked just fine. However, on a windy day, going up a hill, I just wish I had a little more, power. But I didn't want a 800+ pound bike. And I didn't need 800/1000/1400 CC's.
Looked around, and found, a bike that was 650CC, BUT, only weighed 100 lbs more than the XT-225. (Which was Not a, 'dirt bike' or DS)
I knew 400-600 CC was good enough power, from my short interludes, with late 70 early 80's, Honda/Kowi/Yam 400 - 600's. But just to much headache, to fix this, than fix that, then find this part, then that part., etc etc. Not to mention, 'sinking' carb's.
So, I did go bigger. To the S-40.
But going to a 1200 + CC, 1,000 pound one.
If that becomes the, 'need', then, probably a Can Am.
(With a 'Cup Holder")