Wheels SEISMIC Alpha 80.5mm 76A Mango Defcon

The Seismic Alpha 80.5mm 76A Mango Defcon Wheels are built for elite racers seeking extreme grip, precise slides, and rapid braking control. With their 80.5mm diameter and 60mm width, these wheels provide maximum roll speed and stability, while the 60.5mm running surface ensures smooth, predictable handling in high-speed descents. Crafted with Seismic’s Defcon™ ultra-high-rebound urethane, these wheels offer Guinness World Record speed, outstanding grip, and slow, consistent wear. The 76A Mango durometer provides vice-like grip with a snappy, responsive slide, making them ideal for technical courses where maximum control and rapid braking are crucial. Featuring Seismic’s Fusion™ core, the largest and most efficient hub ever used in a wheel of this size, these wheels optimize energy return, improve acceleration, and enhance edge support. The bearing seat, offset by 3.5%, allows for progressive lip engagement and uniform wear, while the square outside edge and straight-cut inside edge maximize traction and precise slide initiation. Specifications : Size : 80.5mm x 60mm Color : Mango Durometer : 76A Formula : Defcon™ (Guinness WR speed, ultra-high rebound) Running surface : 60.5mm Bearing seat : Offset 3.5% (for progressive lip engagement) Profile : Square outside edge, straight-cut inside edge Core : Fusion™ (46mm x 44mm fiber-reinforced thermoplastic) Weight : 9.125 oz per wheel Sold as : Set of four wheels Designed for racers who demand ultimate grip, responsive slides, and powerful braking control, the Seismic Alpha 80.5mm 76A Mango Defcon Wheels offer elite-level performance for high-speed downhill racing and technical freeride maneuvers.