Dual-Sport tires for an 82 Suzuki GS650GL?

So, I was looking for some dual tires for my 1982 GS650GL. Nothing too aggressive, as I am by no means trying to make this thing into a MX wannabe, but there are a fair amount of gravel hard-pack trails to ride here in the Midwest, so I was hoping to take advantage of that situation. I've tried to wrap my head around the different tire sizes, but I guess where I get lost at is how much wiggle room I have between height and width. I believe my stocks sizes are 100/90-19 front and a 130/90-16 rear.
Any ideas?

Thanks in advance.

-Scotty


1982 GS650GL

Shinko 705's.

Okay, cool, I was looking at those and thinking the same. Will pick a front one up. They don't come in a 16 for the rear, though.

Shinko makes dependable dual purpose tires. I got mine at 4wheelonline.

heidenau K60's are pretty awesome