Universal Parts 20 X 4.50-5.00 Inner Tube $13.99 Quantity discounts available QuantityPrice SKU: 136-147 This item is IN STOCKCurrent Stock: 100 Quantity -+ Add to Cart Details Universal Parts 20 X 4.50-5.00 inner tube for fat tire bikes and E-bikes. Used on Super73 R, RX, S2, and ZX, as well as other makes and models. Specs Schrader ValveCan Be Used With 20x4 or 20x5 Tires Supported Models Universal Fit DetailsSpecsSupported Models Back Universal Parts 20 X 4.50-5.00 inner tube for fat tire bikes and E-bikes. Used on Super73 R, RX, S2, and ZX, as well as other makes and models. Back Schrader ValveCan Be Used With 20x4 or 20x5 Tires Back Universal Fit