motocross helmet 3d model

Create a standalone conversion cover for an LS2 Subverter EVO motocross helmet, giving it the appearance of a modern full-face sportbike helmet. Generate only the cover, not a complete helmet. Make it one connected hollow frame with an upper brow section, two curved side sections, and a lower chin-bar fairing surrounding a large open eye port. The intended helmet has an elongated oval shell, angular cheeks, and a long pointed motocross chin guard. Shape the cover to wrap around those contours. Use smooth aerodynamic surfaces to soften the pointed chin profile, with subtle sculpted ridges and small recessed ventilation slots. Keep the eye opening completely clear. Include a recessed rim around the eye opening for a separate face shield, plus a matching circular visor pivot boss on each side near the temples. Leave the rear and underside open so the cover forms an exterior attachment rather than a solid helmet. Use symmetrical geometry, consistent wall thickness, rounded edges, and a