PowerBlock S-Spec

The ultimate BMX racing tire, the PowerBlock is designed to efficiently transfer pedal power and other rider inputs into lateral motion. In short, you’ll roll faster with less wasted energy. The S-Spec version utilizes Tioga’s thinnest sidewall for maximum suppleness and weight savings. Size for size, the PowerBlock S-Spec are the lightest BMX tires in the world.

PowerBlock S-Spec
Application Race
Material Cyclex 120 TPI Superlight Casing
Folding Bead
UTC Rubber
Size & Weight 20 x 2.1 11.64oz; 330g
20 x 1.95 10.76oz; 305g
20 x 1.75 10.05oz; 285g
20 x 1.60 8.47oz; 240g
20 x 1-3/8 8.99oz; 255g
20 x 1-1/8 6.31oz; 179g


All the sweet goodness of the PowerBlock S-Spec, but in steel bead with thicker, stronger sidewall. The standard PowerBlock strikes the sacred equilibrium between performance and value.

Application Race
Material 60 TPI casing
Steel Bead
UTC Rubber
Size & Weight 24 x 2.10 18.34oz; 520g
24 x 1.75 15.87oz; 450g
24 x 1.60 13.93oz; 395g
24 x 1.40 11.81oz; 335g
20 x 2.10 13.93oz; 395g
20 x 1.95 13.40oz; 380g
20 x 1.75 12.35oz; 350g
20 x 1.60 10.76oz; 305g
20 x 1.40 10.40oz; 295g
20 x 1-3/8 12.50oz; 355g
20 x 1-1/8 9.88oz; 280g
"Power Blocks" are precisely sized to balance traction with low rolling resistance.
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Specially designed texture pattern, strategically applied to the sidewall adds abrasion protection without sacrificing casing suppleness.