The Ground Control tire is such a great trail tire, we have adapted it for all sizes and ages. This tried-and-true design features CAD-engineered knob shapes, which strengthen the knob structure for optimal braking and traction, but it keeps the knob surfaces adaptable for the best possible grip on mountain trails. Casing: 26 TPI
Bead: Wire
Compound: 60a
20x2.35"; 25~50
24x2.35"; 25~50