Wheels SEISMIC Tantrum 68mm 78A Mango Defcon

The Seismic Tantrum 68mm 78A Mango Defcon Wheels are designed for riders seeking a lightweight, high-performance freeride wheel that excels in smooth slides, quick acceleration, and predictable handling. These wheels are molded around Seismic’s proprietary “fin-trimmed” Energy Conversion (EC) hub, reducing weight while maintaining exceptional stability and inside-edge rebound. Formulated with Seismic’s Defcon™ urethane, these wheels offer Guinness World Record speed, extremely slow, consistent wear, and smooth, predictable in-slide feedback. The 78A Mango durometer provides a super-fast roll with a well-balanced grip-to-slide ratio, ensuring defined yet easy slide release for ultimate control in freeride and technical downhill sessions. The center-set bearing seat promotes even wear, extending the lifespan of the wheels, while the radiused edges contribute to seamless transitions between grip and slide. Specifications : Size : 68mm x 43mm Color : Mango Durometer : 78A Formula : Defcon™ (Guinness WR speed) Running surface : 31mm Bearing seat : Centerset (for even wear) Profile : Rounded lips for smooth transitions Weight : 4.9 oz per wheel Sold as : Set of four wheels Designed for freeride skaters who demand speed, control, and effortless slides, the Seismic Tantrum 68mm 78A Mango Defcon Wheels deliver exceptional consistency, durability, and performance for high-energy downhill and technical riding.