78mm Seismic Blast Wave Wheels – Polyboards
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78mm Seismic Blast Wave Wheels


  • $ 6595

Manufacturer Description:

Poured in Defcon™ urethane – explosive roll speed and rebound with smooth, predictable grip-to-slip and zero chatter.

A favorite among elite LDP riders worldwide for its speed and acceleration. The Seismic Blast Wave is 78mm tall by 50mm wide, with a radiused outer lip for high grip with controlled sliding. It’s molded around the full version of our proprietary Energy Conversion (EC) hub – making it astoundingly light, responsive, and versatile for a wheel of this size.


  • Diameter: 78mm
  • Width: 50mm
  • Contact patch: 47mm
  • Durometer: 78.5a (mango Defcon formula), 80a (mint Defcon formula
  • Lip shape: Rounded outside lip, square inside lip
  • Core placement: Offset
  • Stoneground?: No

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