Motorbike. Car, Caravan. Ride On Lawnmower Grass Tyre size 13x5.00-6 with straight valve Inner Tube. Fits 6" wheel rims. Tyre Ply: 4. Due to it's stength, this tyre can be used without an Innertube but using one will improve weight distribution even further providing enhanced grip and longer life.
eBay