To deal with the ongoing saga of running tubed tires in my F8GS I poured 16oz of slime in each tire. Thats what the bottle recommends. I have yet to have a flat with them so I can't speak to their effectiveness. Has anyone else used Slime in their tires? How much? How effective? I've also heard you don't need to balance a tire with the proper level of slime in it? Anyone know the truth to this urban legend?