The tires are 2.1 inch w sherrifs
Not bad, I ran bumpy tires too so that helps a bit, the more surface contact the more friction generated so less speed, those are a happy medium and serfas is a decent enough brand. I also like the handling in rain, the tread really sheds water and so turns and braking is pretty optimal on roads when soaked. Dry weather handling is fine too, but slicks always do better in terms of control on roads, still I don't only use roads since I'm not beyond using shortcuts on hilled and grassed spot fillers between roads and junctions when on a motorized bike, it doesn't do damage like a dirt bike so even park stretches are easily hurdled.
You riding a micargi makes me think you might not even go off road with it, I know if I built
that type of bike I wouldn't even want to take it out in the rain let alone getting a little nuts on non paved surfaces..
Knobby tires look cooler in my opinion as well, they have a sort of formidable look to them, almost like the impression you get from looking at a Honda ruckus, it just feels like a more capable machine (and really is, terrain and weather lose a lot of limits since the tires can pull through most everything.)
Knobby tires also set a natural speed limit over slicks in turns, knobs slip sooner than slicks in turns in dry conditions, a rider gets used to this slower handling in turns making it actually safer all round. That 'slower' attitude gets put across the whole driving spectrum in general so as to actually make the experience more safe. Then to top it off when bad road conditions come up knobs handle the change rather well while slicks are affected more by gravel, sand, mud, oil, water, tons of water, leaves, grass, snow, etc.
