The Stovebolt Site Forums The Parking Lot Tons 'o Fun Need new tires, ditch the split rims?

If you're mixing tire types, bias go on the rear. DOT regulations dictate that. I would also advise not running tubes in tubeless radial tires. Again, DOT regulations as well as the danger of blowout from exsessive friction. I work in the tire business, and have seen it far too often.