OS20 PowerBlock S-Spec

Race proven by the fastest racers from your local tracks to the top Elites, the PowerBlock is faithfully recreated in OS20 diameter. Every detail, from precise dimension of the center blocks to the optimal proportions of its shoulder tread, is scrutinized to ensure the OS20 PowerBlock fully takes advantage of its larger size.

Learn more about OS20 Here >

Application:
Race
Material:
  • Cyclex 120 TPI Ultralight Casing
  • UTC Rubber Compound
  • Folding Bead
Weight:
  • OS20 x 1.85
  • OS20 x 1.60
  • 13.05oz; 370g
  • 10.23oz; 290g

OS20 PowerBlock

Wire bead with a more robust 60 TPI casing, the practice-grade OS20 PowerBlock has all the same tread and rubber features as the S-Spec version.

Application:
Race
Material:
  • 60 TPI casing
  • UTC Rubber Compound
  • Wire Bead
Weight:
  • OS20 x 1.85
  • OS20 x 1.60
  • 15.17oz; 430g
  • 12.27oz; 348g
Center Row
"Power Blocks" are precisely sized to balance traction with low rolling resistance. click for more >
Sidewall Feature
Specially designed texture pattern, strategically applied to the sidewall adds abrasion protection without sacrificing casing suppleness.