Okay, so looking through the shed yesterday and found a set of BFG tires mounted on their rims way back in the corner and still holding air. The tires are kind of old and are showing signs of dry rot. I bought them second hand about 8 years ago.

There is plenty of tread on them but between the lugs there are a lot of hairline fractures in the rubber. Any idea if they might be unsafe?

Years ago I was told that pirelli tires tend to rot from the inside out so if you see dry rot then they are automatically unsafe. Does any one know if this is true with BFGs?

Cheers!