Drive tires when to replace?

[mowingguy]

Have over 2,000 hrs on a Simplicity Stallion. Have been very happy with the machine. How do you know when to change the drive tires? -SL

[Restrorob]

When they get slick enough to start spinning while trying to turn ?

[fly-4-fun]

Like Rob said, and if they get so many dry rot cracks in them they won't hold air anymore, time to replace........

[mowingguy]

Looks like it is time for a new set. Thank you men. -SL