Seismic 75.5mm ALPHA Wheels

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    Seismic 75.5mm ALPHA Wheels

    75.5mm tall x 62.5mm wide ALPHA Wheels
    62.5mm running surface • Bearing seat offset 6% • Square outside edge, straight-cut inside edge
    8.125 oz. each • Sold in sets of FOUR wheels

    A perfect balance of optimal properties for modern competitive racing: size and momentum to carry you past the competition in straightaways; finely-tuned width and supremely supported edges for smooth, predictable handling through even the hardest corners; and the very fastest urethane that the skateboard industry has ever seen, bar none.

    Available in two proprietary formulas –
    BlackOps™: ultimate balance of speed and grip • extreme traction fresh • buttery and smooth broken-in • comfortable and predictable
    Defcon™: Guinness WR speed • directional slide • long-lasting grip • slow, consistent wear

    A giant step forward in race wheel engineering. The Alpha’s stout S-shaped edge profile optimizes lip support, maximizes traction under extreme G’s, and ensures predictable slide initiation and hookup. The running surface features a 0.5mm concave that pre-loads the edges, heightens rebound, and enhances in-slide feedback. The bearing seat is offset 6% for progressive lip engagement and more consistent wear.

    The Alpha™ also marks the debut of Seismic’s proprietary Fusion™ core – at 46mm tall x 44mm wide, the largest and most supportive hub ever seen in a wheel this size. Features include a deep “saddle” profile, 8 perpendicular support beams (hollowed-out for lightness and aesthetics), and robust bearing lugs. The Fusion minimizes lateral wheel flex, supercharges edge support, and assures absolute mechanical lock with the urethane. Formed from 85D fiber-reinforced thermoplastic – the toughest hub material in the industry.

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