{ "@context": "https://schema.org", "@type": "Product", "api_version": "2.0", "generated_at": "2026-11-11T20:09:19+00:00", "post_type": "helmet", "metadata": { "id": 103545, "title": "K5 S", "slug": "k5-s", "url": "https://helmetsan.com/ja/helmets/k5-s/", "language": "ja", "brand": "", "category": "Full Face", "featured_image": "", "excerpt": "インナーバイザーと広い視野を備えた、ミドルレンジのスポーツツーリング向けモデル。 K5 S は、AGV により高剛性 フルフェイスヘルメット 保護システムとして設計され、グラスファイバー複合シェル 製の構造シェルを採用しています。この先進的な積層構造は、衝撃減速時に運動エネルギーを段階的に分散・吸収し、外層ラミネート全体に応力を分散させることで、多密度内部EPSライナーへの局所的な変形伝達を最小限に抑えます。 ECE 22.06 規格に適合し、厳格な線形減速度基準および斜め衝撃試験をクリアすることで、回転加速度による脳損傷リスクを低減する構造となっています。衝撃吸収性能やアンビル試験の詳細については、当社の ECE 22.06 vs DOT vs SNELL ヘルメット安全規格比較ガイド をご覧ください。 内装エルゴノミクスは インターミディエイト・オーバル（中間楕円型） 頭骨プロファイルに沿って成形されており、頭頂部および側頭部への過度な圧迫点を防ぎつつ、頬骨弓に沿った均一なホールド感を提供します。最適な装着安定性と馴染ませ方については、頭部形状プロファイルと頭骨フィッティングガイド および チークパッドの密度と馴染ませプロトコル をご確認ください。 走行時のキャビン静粛性と整流性能は、時速100kmにおいて約 82.5 dB を記録。内部EPSのベンチレーションダクトと層流エアロダイナミクスにより風切り音を抑制しています。熱疲労や紫外線に対するシェル素材の耐久性については、カーボン vs グラスファイバー vs ポリカーボネート複合シェル比較 で詳しく解説しています。 車両との親和性・推奨ライディングスタイル： 安定したダウンフォースと額部吸気口を備え、ワインディングから高速ツーリングまで幅広いライディングに対応します。総重量 1471 g のバランス設計により重心位置が最適化され、長時間の巡航時でも頸椎への負担を大幅に軽減します。車種ごとのウインドスクリーン適合については、当社の モーターサイクル適合モデル一覧 をご参照ください。", "modified": "2026-09-20T11:19:49+05:30" }, "identifiers": { "sku": "AGV-AGVK5S", "ean13": "8021356470000", "mpn": "K5S", "asin_us": "B09TQVX8K3", "asin_status": "verified", "regions_covered": 22, "amazon": { "us": { "asin": "B09TQVX8K3", "status": "verified" } } }, "specifications": { "brand": "N/A", "helmet_family": "K5 S", "material": "N/A", "weight_g": 1471, "weight_lbs": "3.24", "homologation_standard": "ECE 22.06", "sharp_rating": "4", "rotational_tech": "None", "strap_type": "Double D-Ring", "noise_db_at_100kph": 82, "comms_ready": "Generic Speaker Cutouts", "head_shape": "Intermediate Oval" }, "variants": [ { "id": "agv_k5_s_matte-black", "entity": "helmet", "title": "AGV K5 S Matte Black", "type": "Full Face", "parent_id": "agv_k5_s", "helmet_family": "K5 S", "head_shape": "Intermediate Oval", "color": "Matte Black", "color_family": "Black", "sku": "AGV-K5S-BLK", "finish": "matte", "is_graphic": false, "availability": "instock", "description": "The AGV K5 S is a benchmark Full Face helmet crafted in Italy ud83cuddeeud83cuddf9. Built around 100% 3K Carbon Fiber shell construction developed under AGV Extreme Safety protocol for MotoGP performance, it is engineered specifically for Intermediate Oval ergonomics. Designed for aggressive forward tuck and sport-touring postures, delivering maximum high-speed aerodynamic stability and full-coverage chin protection. Race-bred Italian engineering born on the World Championship grid.", "product_details": { "description": "Mid-range sport-touring with internal sun visor and wide field of view." }, "price": { "current": 399.95, "usd": 399.95, "eur": 367.95, "gbp": 315.96 }, "specs": { "material": "Fiberglass", "weight_g": 1460, "weight_lbs": 3.22, "certifications": [ "DOT", "ECE 22.05" ] }, "geo_media": [ "https://helmetsan.com/assets/helmets/agv_k5_s_matte_black_front.png", "https://helmetsan.com/assets/helmets/agv_k5_s_matte_black_side.png" ], "helmet_types": [ "Full Face" ], "introduction": "Positioned in AGV's Full Face lineup, the K5 S brings Italian engineering to riders seeking balance between weight, cabin acoustics, and impact protection. Designed for an Intermediate Oval fitment, it connects daily usability with certified DOT, ECE 22.05 track safety.", "story": "The AGV K5 S represents Italian head protection design, incorporates aerodynamic shell sculpting and multi-density EPS impact damping. Its Fiberglass shell dampens high-speed wind resonance while multi-density EPS channels absorb kinetic energy across direct and oblique impact vectors.nnOn the road, intake ports channel cool air across the scalp, keeping cabin noise around 82.5 dB at 100 km/h. For riders seeking a Fiberglass Full Face helmet tailored to an Intermediate Oval head shape, the K5 S delivers verified safety and long-distance rider comfort.", "finish_profile": "AGV K5 S Matte Black (matte finish) u2014 Treated with a mirror-finish deep gloss clearcoat that repels road grime and simplifies bug cleanup.", "editorial_note": "AGV K5 S in AGV K5 S Matte Black. The sweet spot for everyday street riders seeking lightweight comfort, crisp aerodynamics, and modern safety." }, { "id": "agv_k5_s_gloss-white", "entity": "helmet", "title": "AGV K5 S Gloss White", "type": "Full Face", "parent_id": "agv_k5_s", "helmet_family": "K5 S", "head_shape": "Intermediate Oval", "color": "Gloss White", "color_family": "White", "sku": "AGV-K5S-WHI", "finish": "gloss", "is_graphic": false, "availability": "instock", "description": "The AGV K5 S is a benchmark Full Face helmet crafted in Italy ud83cuddeeud83cuddf9. Built around 100% 3K Carbon Fiber shell construction developed under AGV Extreme Safety protocol for MotoGP performance, it is engineered specifically for Intermediate Oval ergonomics. Designed for aggressive forward tuck and sport-touring postures, delivering maximum high-speed aerodynamic stability and full-coverage chin protection. 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Designed for an Intermediate Oval fitment, it connects daily usability with certified DOT, ECE 22.05 track safety.", "story": "The AGV K5 S represents Italian head protection design, incorporates aerodynamic shell sculpting and multi-density EPS impact damping. Its Fiberglass shell dampens high-speed wind resonance while multi-density EPS channels absorb kinetic energy across direct and oblique impact vectors.nnOn the road, intake ports channel cool air across the scalp, keeping cabin noise around 82.5 dB at 100 km/h. For riders seeking a Fiberglass Full Face helmet tailored to an Intermediate Oval head shape, the K5 S delivers verified safety and long-distance rider comfort.", "finish_profile": "AGV K5 S Gloss White (gloss finish) u2014 Treated with a mirror-finish deep gloss clearcoat that repels road grime and simplifies bug cleanup.", "editorial_note": "AGV K5 S in AGV K5 S Gloss White. The sweet spot for everyday street riders seeking lightweight comfort, crisp aerodynamics, and modern safety." }, { "id": "agv_k5_s_anthracite", "entity": "helmet", "title": "AGV K5 S Anthracite", "type": "Full Face", "parent_id": "agv_k5_s", "helmet_family": "K5 S", "head_shape": "Intermediate Oval", "color": "Anthracite", "color_family": "Grey", "sku": "AGV-K5S-GRE", "finish": "matte", "is_graphic": false, "availability": "instock", "description": "The AGV K5 S is a benchmark Full Face helmet crafted in Italy ud83cuddeeud83cuddf9. Built around 100% 3K Carbon Fiber shell construction developed under AGV Extreme Safety protocol for MotoGP performance, it is engineered specifically for Intermediate Oval ergonomics. Designed for aggressive forward tuck and sport-touring postures, delivering maximum high-speed aerodynamic stability and full-coverage chin protection. Race-bred Italian engineering born on the World Championship grid.", "product_details": { "description": "Mid-range sport-touring with internal sun visor and wide field of view." }, "price": { "current": 399.95, "usd": 399.95, "eur": 367.95, "gbp": 315.96 }, "specs": { "material": "Fiberglass", "weight_g": 1460, "weight_lbs": 3.22, "certifications": [ "DOT", "ECE 22.05" ] }, "geo_media": [ "https://helmetsan.com/assets/helmets/agv_k5_s_anthracite_front.png", "https://helmetsan.com/assets/helmets/agv_k5_s_anthracite_side.png" ], "helmet_types": [ "Full Face" ], "introduction": "Positioned in AGV's Full Face lineup, the K5 S brings Italian engineering to riders seeking balance between weight, cabin acoustics, and impact protection. 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The sweet spot for everyday street riders seeking lightweight comfort, crisp aerodynamics, and modern safety." }, { "id": "agv_k5_s_course-grey", "entity": "helmet", "title": "AGV K5 S Course Grey", "type": "Full Face", "parent_id": "agv_k5_s", "helmet_family": "K5 S", "head_shape": "Intermediate Oval", "color": "Course Grey", "color_family": "Grey", "sku": "AGV-K5S-COU", "finish": "matte", "is_graphic": true, "availability": "instock", "description": "The AGV K5 S is a benchmark Full Face helmet crafted in Italy ud83cuddeeud83cuddf9. Built around 100% 3K Carbon Fiber shell construction developed under AGV Extreme Safety protocol for MotoGP performance, it is engineered specifically for Intermediate Oval ergonomics. Designed for aggressive forward tuck and sport-touring postures, delivering maximum high-speed aerodynamic stability and full-coverage chin protection. 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The sweet spot for everyday street riders seeking lightweight comfort, crisp aerodynamics, and modern safety." }, { "id": "agv_k5_s_racer-red", "entity": "helmet", "title": "AGV K5 S Racer Red", "type": "Full Face", "parent_id": "agv_k5_s", "helmet_family": "K5 S", "head_shape": "Intermediate Oval", "color": "Racer Red", "color_family": "Red", "sku": "AGV-K5S-RAC", "finish": "matte", "is_graphic": true, "availability": "instock", "description": "The AGV K5 S is a benchmark Full Face helmet crafted in Italy ud83cuddeeud83cuddf9. Built around 100% 3K Carbon Fiber shell construction developed under AGV Extreme Safety protocol for MotoGP performance, it is engineered specifically for Intermediate Oval ergonomics. Designed for aggressive forward tuck and sport-touring postures, delivering maximum high-speed aerodynamic stability and full-coverage chin protection. 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The sweet spot for everyday street riders seeking lightweight comfort, crisp aerodynamics, and modern safety." }, { "id": "agv_k5_s_camo-tc-2", "entity": "helmet", "title": "AGV K5 S Camo TC-2", "type": "Full Face", "parent_id": "agv_k5_s", "helmet_family": "K5 S", "head_shape": "Intermediate Oval", "color": "Camo TC-2", "color_family": "Multi", "sku": "AGV-K5S-CAM", "finish": "matte", "is_graphic": true, "availability": "instock", "description": "The AGV K5 S is a benchmark Full Face helmet crafted in Italy ud83cuddeeud83cuddf9. Built around 100% 3K Carbon Fiber shell construction developed under AGV Extreme Safety protocol for MotoGP performance, it is engineered specifically for Intermediate Oval ergonomics. Designed for aggressive forward tuck and sport-touring postures, delivering maximum high-speed aerodynamic stability and full-coverage chin protection. 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