| Brand | Seismic |
|---|
Check the listing for details. Seismic Speed Vent 73mm 78.5A Mango Defcon Formula. Condition: Used. Listed at 85.00 USD. Seismic Speed Vent Mango Defcon Formula 73mm 78.5A. Poured in Defcon™ urethane: Guinness WR speed • directional slide • long-lasting grip • slow, consistent wear. The 73mm by 56mm Seismic Speed Vent is molded around our proprietary weight-saving Energy Conversion (EC) hub – the first tall, wide hub seen in longboarding and still second-to-none.