Seismic and Harfang have come together in a new collaboration to create a series of race wheels specially-grooved for better traction and speed on wet road surfaces. Seismic technology combined with Harfang’s tread preparation make wet-weather rippers that are now available direct from Seismic or Harfang.

Seismic x Harfang Grooved Rain Speedvents 77mm

When you talk about performance and innovation in longboarding wheels, Seismic and Harfang are usually part of the conversation.

Seismic Wheels have long been known for their advanced urethane formulas and proprietary cores. BlackOps and Defcon are generally regarded as the fastest urethane compounds out there. To keep them rolling, Seismic’s recently introduced Fusion core was carefully engineered to increase support  and maximize core rigidity. These improvements translate into more grip, predictability and consistency.

Seismic Skate Alpha Wheel Fusion Core Cross Section

Seismic Skate Fusion Core

Likewise, Harfang is well known for modifying wheels with CNC cut tread patterns designed to increase traction on wet or inconsistent pavement. When the tracks get slick, you’ll see competitors switching to a set of wheels prepared with one of Harfang’s tread patterns.

The tread patterns are designed to evacuate water between the road and wheel surfaces, improving traction and maximizing speed for sessions in the wet. Harfang is widely known for bringing this technology to the industry and at present, the only company that offers these unique services.

Seismic Team Rider @a_swag211 on Harfang Prepared Alphas

Seismic Team Rider @a_swag211 at the starting line on Harfang prepared Alphas

While Harfang does have it’s own line of wheels, you’ll often see wheels from other manufacturer’s sent in for modification. Harfang offers their wheel preparation services for any wheel a customer chooses to send in. Like a craftsmen and his tools, each wheel and tread combination are designed for specific track conditions.

Harfang Rain Wheel Pattern FAQ

What’s Different

You’ve probably already seen a set of Seismic wheels prepared with a Harfang tread pattern. Check out the video below of Seismic team riders on Seismic wheels prepared with Harfang Stage 1 at the 2014 KnK Freeride.

What’s different about this collaboration? In the past you’d have to send Harfang a set of your own wheels for modification. This meant shipping the wheels at least two ways – three if you already had them. Now you can get Seismic wheels prepared with Harfang tread patterns, direct from either Harfang or Seismic – No waiting on shipping or preparation.

Where To Get Them

Each wheel is available direct from Seismic’s web-store with Harfang’s Stage 1 pattern. If you’re looking for some additional options, Harfang’s web-store offers each wheel with the tread pattern of your choice or Roman Candle style.

The only caveat is limited quantity.

77/79a Speed Vents, DefCon/BlackOp Alphas, BlackOP Hotspots, BlackOp SpeedVents all cut with the Harfang Stage 1

Seismic x Harfang Rain Wheel Pattern

Bottom-line: With this collab you get the best of both worlds, Seismic’s top of the line cores and urethane with Harfang’s CNC work but quantities are limited so order quick!

Seismic x Harfang Alpha 75.5mm 76a

Seismic x Harfang Alpha 75.5mm 77a

Seismic x Harfang HotSpot 76mm 77a

Seismic x Harfang HotSpot 76mm 78.5a

Seismic x Harfang SpeedVent 77mm 77a

Seismic x Harfang SpeedVent 85mm 79a

Seismic x Harfang SpeedVent 77mm 79a