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    "generated_at": "2026-11-10T23:52:38+00:00",
    "post_type": "helmet",
    "metadata": {
        "id": 130805,
        "title": "GMax OF-77 Matte Black",
        "slug": "gmax-of-77-matte-black",
        "url": "https://helmetsan.com/ja/helmets/gmax-of-77-matte-black/",
        "language": "ja",
        "brand": "",
        "category": "Open Face",
        "featured_image": "",
        "excerpt": "お買い得な価格を実現した、インナーバイザー装備の多用途ジェットヘルメット。 The GMax OF-77 Matte Black is engineered as a high-integrity Full Face protective system by GMax, 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 EPS liner. ... 続きを読む",
        "modified": "2026-09-21T05:11:21+05:30"
    },
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    "specifications": {
        "brand": "N/A",
        "helmet_family": "OF-77",
        "material": "N/A",
        "weight_g": 1200,
        "weight_lbs": "2.65",
        "homologation_standard": "DOT FMVSS 218",
        "sharp_rating": "",
        "rotational_tech": "None",
        "strap_type": "Double D-Ring",
        "noise_db_at_100kph": 95,
        "comms_ready": "Generic Speaker Cutouts",
        "head_shape": "Intermediate Oval"
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    "compatible_motorcycles": [],
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