Wow . . . I can't believe it's been that long since I logged into the forums. I'm just now seeing this. I had one of those trailers, but as Nick said, it was destroyed in my garage fire. Hugh at Scenic City Scooters had the correct size tires for the trailer. Mine were good, but he sold a set to someone else who was looking for some. The downside to them is their size. They turn really high RPMs at relatively low speeds. I think the scooter tires are rated for 45 or 50 MPH. They would probably be ok for slightly faster speeds for limited distances. As Nick also mentioned, Hugh and Kathy have closed their shop in Red Bank and retired, and Hugh passed away a couple of months ago.