What size are the rear tires on your cub cadet 1641?

What size are the rear tires on your cub cadet 1641?
The size of the rear tires on the Cub Cadet 1641 garden tractor are23x10.5-12. The size of the front tires are 16x6.5-8. The wheelbase on this tractor is 46.5 inches.