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    "generated_at": "2026-10-25T06:28:51+00:00",
    "post_type": "helmet",
    "metadata": {
        "id": 41306,
        "title": "N21 Visor Silver Metallic",
        "slug": "n21-visor-silver-metallic-2",
        "url": "https://helmetsan.com/zh/helmets/n21-visor-silver-metallic-2/",
        "language": "zh",
        "brand": "",
        "category": "Open Face",
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        "excerpt": "城市风格开面盔，配备集成式遮阳镜，支持 N-Com 通讯系统。 The N21 Visor Silver Metallic is engineered as a high-integrity Full Face protective system by Nolan, utilizing a structural shell constructed from Polycarbonate. This structural layup is engineered to provide progressive kinetic energy dissipation during impact deceleration, distributing localized shock across outer lamina layers while minimizing deformation transfer into the internal multi-density ... 阅读更多",
        "modified": "2026-09-09T20:27:16+05:30"
    },
    "identifiers": {
        "sku": "NOL-NOLANN",
        "ean13": "8052391460000",
        "mpn": "N21-00-SILVER-METALLIC",
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    "specifications": {
        "brand": "N/A",
        "helmet_family": "N21 Visor",
        "material": "N/A",
        "weight_g": 1306,
        "weight_lbs": "2.88",
        "homologation_standard": "ECE 22.05",
        "sharp_rating": "3",
        "rotational_tech": "1",
        "strap_type": "Double D-Ring",
        "noise_db_at_100kph": 86,
        "comms_ready": "Generic Speaker Cutouts",
        "head_shape": "Intermediate Oval"
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    "compatible_motorcycles": [],
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