The Tioga Powerblock tire is a lightweight race tire with low profile directional side lugs for excellent cornering on hard pack surfaces and a smooth center tread for less rolling resistance.

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.

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

Note: The 1.40" tires will fit 1.5" rims only. The 1.60" tires will fit both 1.5" and 1.75" rims.