Our folding tires on our tandem usually last in the 2,000 mile range over the years.
Back tire wears a tad quicker than the front.
Also have only had 2 wire beaded tires blow/explode on our tandem but those were being tested for Avocet a couple decades ago. Needless to say we did recommend them for tandem usage!
Pedal on!
Rudy and Kay/zonatandem