+ Anatomy of powerblock

powerblock S-Spec

Cylex 120 TPI Superlight Casing
UTC Rubber Compound
Folding Bead
20 x 1.75  10.05oz:  285g
20 x 1.60  8.47oz:  240g
20 x 1-1/8  6.31oz:  179g


60 TPI Casing
UTC Rubber
Steel Bead
24 x 2.10   18.34oz:  520g
24 x 1.75  15.87oz:   450g
24 x 1.60  13.93oz:  395g
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

powerblock s-spec is one of the lightest tires in the world.

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.


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.


Center Row

“Power Blocks” are precisely sized to balance traction with low rolling resistance.

Sidewall Feature

ecially designed texture pattern, strategically applied to the sidewall adds abrasion protection without sacrificing casing suppleness.