Dear Sir Madam, This is E WSTAFFORD from US. I'm looking for products with the following specifications: 1. TIRE KNOBBY FLAT FREE 4.80 4.00-8LP, 6 INCH CENTERED HUB, 5 8 inch PEER Bearing. 2. TIRE RIBBED FLAT FREE 4.8-0 4.00-8LP, 3 inch CENTERED HUB, 5 8 inch PEER Bearing.