Universal Compatibility : General wheelbarrow tire diameter is 14.5 inches and can replace tires with diameters between 13 inches and 16 inches, including 4.80/4.00-8" (15-16”diameter), 3.50/2.50-8" (13” diameter), and 4.00-6" (13”diameter). Axle hole:16mm. load capacity :300lb .,Flat-Free Tire : Say goodbye to flat tires forever. Crafted with high-quality materials, this solid tire boasts remarkable load-bearing capacity and exceptional resistance to wear and tear, ensuring longevity even in the most demanding environments. Our Flat Free Tire technology ensures a worry-free experience, saving you time and effort without the need for air pumps or repairs.,Perfect Substitute : Perfect for wheelbarrows , garden carts, hand trucks, trolleys, Sack Trolley , Generator, All Purpose Utility Tire, etc. (Not for highway use). 14.5" Tire Diameter, 3" centered hub ,5/8" Ball Bearings . Adapter kit includes: 1/2" long spacers * 2, 1" long spacers * 2,3/4" ball bearings * 2 .,Unique pattern design : Unlike traditional non-pressure tires, which struggle to withstand static loads, one of the main advantages of our upgraded 13-16 inch unicycle tires is their excellent static load capability. With a static load capacity of up to 300 pounds, it effectively solves long-standing customer problems with flat free wheels, such as their inability to withstand static loads and their tendency to deform under such loads.,wheelbarrow tire : Please rest assured that if you have any questions, please email me and I will give you a satisfactory answer!