Fuel FT3072 GoCart 2 Rider Tube for $99.99. Shipping is $5.00 for a total of $104.99 shipped. Here is a screenshot for your reference. This floating tube is designed for two riders with a max 340-lb. combined weight capacity. and features an inflatable floor, 4 foam-filled nylon handles with neoprene knuckle guards, and inflatable headrest.