SEISMIC ALPHA WHEEL 80.5MM X 60MM 74A DOWNHILL- PLUM DEFCON

80.5mm tall x 61mm wide ALPHA Wheels Sold in sets of FOUR wheels. Available in TWO finely-tuned widths: 60.5mm running surface • Bearing seat offset 3.5% • Square outside edge, straight-cut inside edge • 9.125 oz. each A highly-optimized balance of properties for modern racing • Superior top-end roll speed, traction, and braking power… with surprising quickness and agility for a wheel of this heft! • 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. A giant step forward in race wheel engineering • Stout S-shaped edge profile optimizes lip support, maximizes traction under extreme G’s, and ensures predictable slide initiation and hookup. • Running surface features a 0.5mm concave that pre-loads edges, heightens rebound, and enhances in-slide feedback. • Bearing seat offset 3.5% – 6.5% for progressive lip engagement and more consistent wear. The Fusion™ core – integrating 15 years of advanced hub R&D • 46mm tall x 44mm wide – the largest and most supportive hub ever seen in a wheel this size. • Deep, wide “saddle” profile regulates lateral wheel flex, supercharges edge support, and ensures absolute mechanical lock with the urethane. • 8 lateral support beams (hollowed-out for lightness and aesthetics) form wide ridges that create unprecedented circumferential lock and rebound. • Robust bearing lugs. • Formed from 85D fiber-reinforced thermoplastic – the toughest hub material in the industry. Available in DEFCON™ ultra-high-rebound formula, in three finely-tuned durometer choices Thoroughbred race ‘thane • Guinness WR speed • directional slide • long-lasting grip • slow, consistent wear • 74A Plum (Aaron Hampshire 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. Chase Hiller:Acid Test from Seismic Skate Systems on Vimeo.