All Apollo Scooters have tubed, pneumatic, vulcanized rubber tires on a split rim design! We choose this for a combination of best traction and ease of repair - tubeless pneumatic tires can't go on split rims, meaning more difficult flat repairs, and provide slightly less traction than tubed tires. Hard tires mean no flats ever, but are a pain to take on/off, and provide a much bumpier ride and way less traction than pneumatic tires.
Our tires are not pre-slimed, nor do we offer the service of installing Slime or other tire sealant before shipping. Slime does provide some protection on our tires, but only a slight amount, as tire sealants are largely designed for tires without inner tubes.