Amazon.com: MaxAuto Set of 2 13x6.50-6 Flat Free Lawn Mower Smooth Tires on Wheel for Lawn Mower Garden Tractor(4.0"Centered Hub - Hub Length 4"-4.5''-5.0''-5.5" with 5/8" or 3/4'' Sintered iron Bushing) :
Firestone Super All Traction 23 R1 23.1-26 G/14PLY Tires
Super Deep Pattern R2 Agricultural Tires 12.4-24 12.4X24 13.6-26 13.6X26 for Kubota Tractor Japanese Pattern Thailand Pattern - China Agricultural Tyre, Agr Tyre | Made-in-China.com