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    "generated_at": "2026-11-10T21:14:30+00:00",
    "post_type": "helmet",
    "metadata": {
        "id": 128239,
        "title": "Leatt MTB 4.0 V21 Carbon",
        "slug": "leatt-mtb-4-0-v21-carbon",
        "url": "https://helmetsan.com/ja/helmets/leatt-mtb-4-0-v21-carbon/",
        "language": "ja",
        "brand": "",
        "category": "Full Face",
        "featured_image": "",
        "excerpt": "エンデューロおよびダウンヒルMTB向けの超軽量フルフェイスヘルメット。 The Leatt MTB 4.0 V21 Carbon is engineered as a high-integrity Full Face protective system by MT Helmets, utilizing a structural shell constructed from Carbon Fiber. 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 ... 続きを読む",
        "modified": "2026-09-21T03:51:04+05:30"
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    "identifiers": {
        "sku": "HSN-VAR-LEATT-MTB-4-0-V21-CARBON",
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        "mpn": "",
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    "specifications": {
        "brand": "N/A",
        "helmet_family": "MTB 4.0 V21",
        "material": "N/A",
        "weight_g": 880,
        "weight_lbs": "1.94",
        "homologation_standard": "DOT, ECE 22.05",
        "sharp_rating": "",
        "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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