2 flats in the last 8,000 miles between our tandem and single racing bike.
Both were from a patch that had come loose.
No actual puntures.
And yes, we live/ride mostly in flat-prone desert country in Arizona.
We've been using Maxxis Re-Fuse 700x25s and currently also trying out a Panaracer Pasela Tourguard 700x25 on rear of our tandem.
All tires have a Kevlar folding bead and are Kevlar belted.
Pedal on TWOgether!
Rudy and Kay/zonatandem