Amazon.com : Raleigh - T1429-26 x 1 3/8 Inch Low Rolling Resistance Sport, Trekking and Commuting Bicycle Tyre for Paved and Tarmac Surfaces : Sports & Outdoors
Kenda K23 26 x 1-3/8" x 1-1/4" ISO 37-597 S-6 Schwinn Tire – The Bikesmiths
Schwalbe Marathon Mondial 26 Inch [SCH/11100307] at BikeTiresDirect
SCHWALBE DeltaCruiser Plus Active Clincher Rengas PunctureGuard SBC Reflex 26x1 3/8" netistä | bikester.fi
Current 26″ x 1 3/8″ (aka 650A or ISO 590) tire offerings – Society Of Three Speeds