Home Summer Equipment Surfskates / Longboards Parts SECTOR 9 RACE FORMULA SECTOR 9 RACE FORMULA Code: 8974 66 € Select a size Store Availability A wide footprint for better traction, a 72mm diameter for faster speeds, and an 82a wheel stiffness for an unforgettable riding experience. Diameter: 72mmStiffness: 82aEdges: RectangularContact patch: 53mm