24 x 1 in. (25-540) Schwalbe Marathon Plus Evolution Wheelchair Tire
Schwalbe 16"x1.35" Marathon Plus Tire (for Brompton) – PortaPedal Bike
Amazon.com : Schwalbe - Marathon Plus Tour Off Road and Touring Wire Clincher Bike Tire | 26 x 2 | Performance Line | Black/Reflective : Bike Tires : Sports & Outdoors