I was gonna ask if there was some kind of tire that would give me some better stability in the dirt. Like I've seen some tires that look like they'd fit my bike, and have some tread to them. I'm not at home right now and I don't know my tire size off hand, but I'm going to look into some different tires once I get home. I might just borrow the catalogue from work cause I have to order a decent amount of other stuff too. What's the largest tire size I can fit onto my bike?

Thanks
Nick