Mike “Hucker” Clark Signature Tire S (Street) Tread: Low Profile Street/Park Tread T (Trails) Tread: Higher Profile All-Terrain/Dirt Tread High pressure (110 psi), lighter weight, wire bead tire Rectangle tread pattern Both Treads Available in 2.25 & 2.40 Sizes T weights: 25.7 oz (2.25) & 27.3 oz (2.40) S weights: 21.9 oz (2.25) & 26.1 oz (2.40)