How to test a tire for leaks without mounting??

Im talking with a guy about buying some BFG's that hes had in his garage for not too long. But I want to make sure theres no holes in them, is there an easy to find out without taking them to a tire shop and having them mount them, and seeing if they hold air?

 

there is really not a way to check other than doing a real thorough inspection of the inside of the tires for holes and make sure the beads are not dry rotted.

 

ck the dot# on the sidewall of the tire to make sure its not an old tire
also

 

tha last 4 #s are the week and year the tire was made

 

Really soapy water.....watch for bubbles.

 

That works if they are mounted, but he wants to check without having to have them mounted.

 

Give the guy half the money and tell him after they are mounted and don't leak he gets the rest. bring him with you.

 

^^^oops my bad