Wheels SEISMIC Alpha 75.5mm 78A Mint Defcon

The Seismic Alpha 75.5mm 78A Mint Defcon Wheels are designed for racers who need high-speed control, strong grip, and smooth slide initiation. With a 75.5mm diameter and 62.5mm width, these wheels provide excellent momentum for straightaways while maintaining precision for pre-drifts and tight turns. The 62mm running surface ensures consistent wear and maximum traction in high-speed conditions. Made with Seismic’s Defcon™ urethane, these wheels deliver Guinness World Record speed, ultra-high rebound, and slow, consistent wear. The 78A Mint durometer features stiff edges for increased grip while offering a friendly, controllable slide, making them an optimal choice for smooth roads and lighter riders. Built around Seismic’s Fusion™ core, the largest and most supportive hub ever used in a wheel of this size, these wheels provide maximum edge support, absolute mechanical lock with the urethane, and superior rebound. The bearing seat, offset by 6.5%, ensures progressive lip engagement and uniform wear, while the square outside edge and straight-cut inside edge maximize grip and control under extreme G-forces. Specifications : Size : 75.5mm x 62.5mm Color : Mint Durometer : 78A Formula : Defcon™ (Guinness WR speed, ultra-high rebound) Running surface : 62mm Bearing seat : Offset 6.5% (for progressive lip engagement) Profile : Square outside edge, straight-cut inside edge Weight : 8.125 oz per wheel Sold as : Set of four wheels Designed for technical downhill skaters looking for high grip, responsive slides, and exceptional speed, the Seismic Alpha 75.5mm 78A Mint Defcon Wheels provide maximum control and precision for advanced racing and freeride sessions.