Wheels SEISMIC Speed Vent 85mm 77A Bubblegum Defcon

The Seismic Speed Vent 85mm 77A Bubblegum Defcon Wheels are engineered for skaters who demand the fastest roll speed, precision handling, and superior grip. Their 85mm diameter and 52mm width provide unparalleled momentum and efficiency, while the 49mm running surface ensures stable traction and controlled slides at extreme speeds. Poured in Seismic’s Defcon™ ultra-high-rebound urethane, these wheels offer Guinness World Record speed, directional slides, and slow, even wear. The 77A Bubblegum durometer delivers plush grip and smooth slide transitions, making them ideal for high-speed downhill, long-distance pushing (LDP), and technical freeride maneuvers. Built around Seismic’s Energy Conversion (EC) hub, the first and most advanced tall, wide hub in longboarding history, these wheels maximize acceleration, enhance energy transfer, and improve rebound. The offset bearing seat allows for progressive lip engagement and precise slide initiation, while the radiused outside edge and chamfered inside edge offer maximum grip with efficient release points. Specifications : Size : 85mm x 52mm Color : Bubblegum Durometer : 77A Formula : Defcon™ (Guinness WR speed, ultra-high rebound) Running surface : 49mm Bearing seat : Offset (for progressive lip engagement) Profile : Radiused outside edge, chamfered inside edge Core : Energy Conversion (EC) hub Weight : 8.6 oz per wheel Sold as : Set of four wheels Designed for elite-level downhill and long-distance riders, the Seismic Speed Vent 85mm 77A Bubblegum Defcon Wheels provide record-breaking speed, exceptional grip, and smooth handling for high-performance racing.