78mm Seismic Blast Wave Defcon Formula Downhill Longboard Wheels

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(2 reviews)
  • Diameter: 78mm
  • Width: 50mm
  • Contact Patch: 50mm
  • Durometer: 77a, 80a, 83a
  • Core Placement: Offset
  • Lip Profile: Round
  • Wheel Surface: Smooth
  • To Sum It Up: If you're not hitting 50mph on these wheels, you're doing it wrong.
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$84.00 USD
1 Quantity = 4 Wheels, enough for a complete longboard.

Who else has holes in their cores besides Seismic?! No one really. No other company puts this much research and testing into their racing cores besides Seimic.

The 78mm Blast Waves were designed to hold great amounts of momentum throughout turns, yet the contact patch is small enough to allow smooth predrifts into hairpins.

This wheel is perfect for you speed demons and crazy slalom riders! Throw a set of these wheels on to your "speed world record breaking" board and blast through your opponents (but give a high five here and there).

Seismic's Description

Unlike previous wheels in the Seismic line, the Blast Wave has a slightly radiused outer lip for high grip with controlled sliding. It's molded around the full version of our proprietary Energy Conversion core, making it astoundingly light for a wheel of this size – so much so that top racers use it for disciplines ranging from Tight Slalom all the way to technical Downhill. Truly a “blast” to ride, and destined to rewrite the book on the versatility of tall wheels.


More Defcon dope-ness
on 2021-01-07 Verified Purchase
I honestly don't know what the deal is with another review. For what it's worth, these have been great wheels. Made of the same mango defcon thane as my 85mm Speed Vents, just a little smaller and narrower--perfect on my Zenit Maze LDP setup running Bennett 6.0 trucks. If you like the dimensions, buy with confidence!
Disappointing purchase
on 2019-01-26
I put about 20 miles if mike cano's crossing around Purdue without issue. Took it to Chicago, did about ten miles of easy cruising, and chunks started coming out of multiple wheels around the 30th mile I put on them. I know chunking is expected, but these giant chunks that came out went all the way to the core. It became evident in the chunks how many air bubbles were in these wheels as well. I got 30 miles total! 30! 2 bucks a mile!