Greetings,

Apologies for the confusion, the tires are on an NCM Aspen plus, 26 x 4.0, inflate to 30 psi on the sidewall. CST Big Boat Tires. I do understand you can run them at lower pressures. TPI (threads per inch), I run the Vittoria Corsa tires on my time machine with 320 tpi, keep them at 115 psi. And Yes, the tires come back packed with thorns.

Cheers!