**ย Sold as set of FOUR wheels **

75.5mm tall x 62.5mm wide ALPHA Wheels
62.5mm running surface โ€ข Bearing seat offset 6% โ€ข Square outside edge, straight-cut inside edge

A highly-optimized balance of properties for modern racing
โ€ข Size and momentum to carry you past the competition in straightaways โ€“ yet agile enough for quick acceleration, fast edge-to-edge adjustments, and snappy technical pre-drifts. Welcome to a whole new realm ofย FAST!
โ€ข Finely-calibrated width and supremely supported edges for smooth, predictable handling through even the hardest corners.
โ€ข The very fastest urethane that the skateboard industry has ever seen, bar none.
โ€ข Named after the Greek letter โ€œalphaโ€ (ฮฑ), used in science to represent rotational acceleration.

A giant step forward in race wheel engineering
โ€ข Stout S-shaped edge profile optimizes lip support, maximizes traction under extreme Gโ€™s, and ensures predictable slide initiation and hookup.
โ€ข Running surface features a 0.5mm concave that pre-loads edges, heightens rebound, and enhances in-slide feedback.
โ€ข Bearing seat offset 6.5% for progressive lip engagement and more consistent wear.

The Fusionโ„ข core โ€“ integrating 15 years of advanced hub R&D
โ€ข 46mm tall x 44mm wide โ€“ the largest and most supportive hub ever seen in a wheel this size.
โ€ข Deep, wide โ€œsaddleโ€ profile regulates lateral wheel flex, supercharges edge support, and ensures absolute mechanical lock with the urethane.
โ€ข 8 lateral support beams (hollowed-out for lightness and aesthetics) form wide ridges that createย unprecedented circumferential lock and rebound.
โ€ข Robust bearing lugs.
โ€ข Formed from 85D fiber-reinforced thermoplastic โ€“ the toughest hub material in the industry.

Available in DEFCONโ„ข ultra-high-rebound formula, in three finely-tuned durometer choices
Thoroughbred race โ€˜thane โ€ข Guinness WR speed โ€ข directional slide โ€ข long-lasting grip โ€ข slow, consistent wear
โ€ข 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.
โ€ข 76A Mango: Vice-like grip and very snappy directional slide, with plenty of slowdown power. Ideal for aggressive racing.

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

  • Durometer:ย Defconย 78a
  • Width:ย 62.5mm
  • Contact Patch:ย 62.5mm
  • Lip Profile:ย Square/Sharp
  • Core Placement:ย Offset 6%
  • Wheel Surface:ย Smooth
  • Diameter:ย 75.5
Weight 3 kg
Dimensions 16 × 8 × 16 cm
Durometer

78a, 81a, 84a

Kats Rack