best 17

I've got a '98 Husaberg FE600E supermoto. The bike came with Michelin Pilot motard race tires 16/63/17 rear 12/60/17 front. Absolutely a blast on pavement, but I can bust my *** just looking at dirt/gravel/grass. I want something that I can explore gravel/dirt fireroads. No mud no big loose...