Which ones are smoother ride would it be 225/40/19 or 225/35/19?

Whats your experience and which are more comfortable vs sportier?

 

its not just the aspect ratio, but the tire itself. some ride more firm than others.

but its safe to say that any 40 series tire is going to be geared towards a sport application.

225/35 is going to be quite thin. get 225/40