Gratislieferung ab CHF 99.–* innerhalb der Schweiz und Liechtenstein | Fragen und Anmerkungen: *Bestellwert

Seismic Alpha 75.5×62.5mm 76a-77a-78a


  • Durometer: 76a Mango, 77a Blue, 78a Mint
  • Diameter: 75.5mm
  • Width: 62.5mm
  • Contact Patch: 62.5mm
  • Core Placement: Offset
  • Lip Profile: Square
  • Wheel Surface: Non Stoneground

75.5mm tall x 62.5mm wide ALPHA Wheels

  • 62.5mm running surface
  • Bearing seat offset 6%
  • Square outside edge, straight-cut inside edge
  • 7.8 oz. each
  • Sold in sets of FOUR wheels


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.

Artikelnummer: Seismic Alpha | 76a/77a/78a, 75.5x62.5mm Kategorien: , , Schlagwörter: , , , , , , , , ,
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9.–16. Juli 2023 on the road macht Kurzurlaub: Vom 9. bis 16. Juli 2023 ist unterwegs auf Skate Events. Bestellungen, die in dieser Zeit getätigt werden, können ab dem 17. Juli 2023 verarbeitet und verschickt werden. Danke für deine Kenntnisnahme und bis bald.