Thanks folks. I have a road bike for paved surfaces nly when I want to travel far or go fast. This MB is kind of just for toolin' around town, exploring, and building strength.
I know on my road bike, that, even hard ground or grasses is a nono, so I do not want to handicap the MB by bending rims, popping spokes, or pinching tubes. As said, there are pretty much no uphill nor downhills on my rides. I dont want to have to walk it everytime the pavement ends as I should do with a road bike with 700X23-25c tires......I just want it to.....heh, I guess there is nothing wrong as it sits, just thought street tires would be more enjoyable, ride smoother, less strain/drag on the motor, etc......