Seismic Alpha wheels 75.5mm 76a Defcon mango

Seismic Alpha wheels 75.5mm 76a Defcon

75.5mm x 62.5mm
Defcon Urethane
Offset core

• 74A Plum (Chase Hiller pro signature wheel): Plush, velvety roll with extra edge hold, even on rough roads. Aggressive yet smooth slide with faster braking.

• 76A Mango: Vice-like grip and very snappy directional slide, with plenty of slowdown power. Ideal for aggressive racing.

• 78A Mint: Very stiff edges that give loads of grip with a friendly slide and crisp hookup. Ideal for smooth roads and lighter riders.

Diameter: 75.5 mm
Durometer: 74a (plum), 76a (mango), 77a (blue), 78a (mint)
Width: 62.5 mm
Contact patch: 62 mm
Core position: Offset
Usage: Downhill
Edge Shape: Straight-cut inner & Square outer edge

A highly-optimized balance of properties for modern racing

Size and momentum to carry you past the competition in straightaways – yet agile enough for quick acceleration, fast edge-to-edge adjustments, and snappy technical pre-drifts. Welcome to a whole new realm of FAST!

Finely-calibrated width and supremely supported edges for smooth, predictable handling through even the hardest corners.

The very fastest urethane that the skateboard industry has ever seen, bar none.

Named after the Greek letter “alpha” (α), used in science to represent rotational acceleration.