Wheels & Tires - Sitting Tires, How long is too Long?

I have my MTs mounted and put on the car, they have been sitting for about 2 months now on the concrete, should I put the car on blocks to get the tires off the cold cement?

Tony.

I've never worried about my tires sitting too long, but mine are all street radials . . . for an MT not too sure.

They may have a flat spot to start out, but once warmed up should be fine. Adding a bit of extra air during storage can help too . . .

i notice my m/t et streets sit for months and when i take the car for a ride they have flat spots in them and i live in florida.i think it is a good idea to take them off and put them inside if you can or just put the car on blocks.thats what i did when i lived up north.

Probly wil then, the roller will be sitting for a long time, might as well do that.

Tony.