Transports 8 bales of hay at one time. 11L x 15 tires on the front and 12.5L x 15 tires on the back. Load capacity is limited by the load-carrying capacity of the tires, which is approximately 2920# per tire on the front and 3420# per tire on the back for a total per unit of 12680#. The rear spindles are 12 ton capacity and the front spindles are 8 ton capacity.