Does anyone know if inner tubes have a shelf life?

I’ve just found a few new boxed ones from the 90’s are they any good?

They look ok, boxes are a bit tatty!

Easy way to find out is pump them up ‘hard’ and leave them for as long as you can tolerate.

There’s a risk (if improperly stored) of cracking, maybe the valve leaks now.

 

I’d just pump them up and leave them hanging. If they are still pumped hard a day later it’s okay for emergencies. If they hold air for a week then it would be worth using. 

Think of the hassle if the tire goes flat.  

 

I've got 2 front and 3 rears, seems a shame to just dump them. 

 

39 minutes ago, suzuki250 said:

I've got 2 front and 3 rears, seems a shame to just dump them. 

 

Dibs, then

If the rubber shows no signs of degradation powdering etc, and holds air, then they would be worth using.

I think it depend on the conditions they where stored.

Guy