{ "@context": "https://schema.org", "@type": "Product", "api_version": "2.0", "generated_at": "2026-10-08T16:14:22+00:00", "post_type": "helmet", "metadata": { "id": 25405, "title": "C91", "slug": "hjc-c91-2", "url": "https://helmetsan.com/helmets/hjc-c91-2/", "language": "en", "brand": "", "category": "Open Face", "featured_image": "", "excerpt": "HJC C91 open face with shield. The C91 is engineered as a high-integrity Full Face protective system by HJC, 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 ... Read more", "modified": "2026-09-06T06:08:26+05:30" }, "identifiers": { "sku": "HJC-HJCC91", "ean13": "4961200000000", "mpn": "C91", "asin_us": "B07Q3K8V5M", "asin_status": "verified", "regions_covered": 22, "amazon": { "us": { "asin": "B07Q3K8V5M", "status": "verified" } } }, "specifications": { "brand": "N/A", "helmet_family": "C91", "material": "N/A", "weight_g": 1298, "weight_lbs": "2.86", "homologation_standard": "ECE 22.06", "sharp_rating": "5", "rotational_tech": "1", "strap_type": "Double D-Ring", "noise_db_at_100kph": 86, "comms_ready": "Generic Speaker Cutouts", "head_shape": "Intermediate Oval" }, "variants": [ { "id": "hjc_c91_black", "entity": "helmet", "title": "HJC C91 Black", "type": "Open Face", "parent_id": "hjc_c91", "helmet_family": "C91", "head_shape": "Intermediate Oval", "color": "Black", "color_family": "Black", "sku": "HJC-C91-BLK", "finish": "matte", "is_graphic": false, "availability": "instock", "description": "The HJC C91 is a benchmark Open Face helmet crafted in South Korea ud83cuddf0ud83cuddf7. Built around Premium Integrated Matrix (P.I.M. Plus) carbon and carbon-glass hybrid fabric shell structure, it is engineered specifically for Intermediate Oval ergonomics. Optimized for urban commuters and retro cruisers, offering lightweight agility, wide peripheral vision, and step-through convenience. Global racing technology engineered for maximum ventilation efficiency.", "product_details": { "description": "HJC C91 open face with shield." }, "price": { "current": 119.99, "usd": 119.99, "eur": 110.39, "gbp": 94.79 }, "specs": { "material": "Polycarbonate", "weight_g": 1050, "weight_lbs": 2.31, "certifications": [ "DOT", "ECE 22.05" ] }, "geo_media": [ "https://helmetsan.com/assets/helmets/hjc_c91_black_front.png", "https://helmetsan.com/assets/helmets/hjc_c91_black_side.png" ], "helmet_types": [ "Open Face" ], "introduction": "Positioned in HJC's Open Face lineup, the C91 brings South Korean 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 HJC C91 represents South Korean head protection design, incorporates aerodynamic shell sculpting and multi-density EPS impact damping. Its Polycarbonate 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 86.5 dB at 100 km/h. For riders seeking a Polycarbonate Open Face helmet tailored to an Intermediate Oval head shape, the C91 delivers verified safety and long-distance rider comfort.", "finish_profile": "HJC C91 Black (matte finish) u2014 Treated with a mirror-finish deep gloss clearcoat that repels road grime and simplifies bug cleanup.", "editorial_note": "HJC C91 in HJC C91 Black. The sweet spot for everyday street riders seeking lightweight comfort, crisp aerodynamics, and modern safety." }, { "id": "hjc_c91_silver", "entity": "helmet", "title": "HJC C91 Silver", "type": "Open Face", "parent_id": "hjc_c91", "helmet_family": "C91", "head_shape": "Intermediate Oval", "color": "Silver", "color_family": "Grey", "sku": "HJC-C91-SLV", "finish": "gloss", "is_graphic": false, "availability": "instock", "description": "The HJC C91 is a benchmark Open Face helmet crafted in South Korea ud83cuddf0ud83cuddf7. Built around Premium Integrated Matrix (P.I.M. Plus) carbon and carbon-glass hybrid fabric shell structure, it is engineered specifically for Intermediate Oval ergonomics. Optimized for urban commuters and retro cruisers, offering lightweight agility, wide peripheral vision, and step-through convenience. Global racing technology engineered for maximum ventilation efficiency.", "product_details": { "description": "HJC C91 open face with shield." }, "price": { "current": 119.99, "usd": 119.99, "eur": 110.39, "gbp": 94.79 }, "specs": { "material": "Polycarbonate", "weight_g": 1050, "weight_lbs": 2.31, "certifications": [ "DOT", "ECE 22.05" ] }, "geo_media": [ "https://helmetsan.com/assets/helmets/hjc_c91_silver_front.png", "https://helmetsan.com/assets/helmets/hjc_c91_silver_side.png" ], "helmet_types": [ "Open Face" ], "introduction": "Positioned in HJC's Open Face lineup, the C91 brings South Korean 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 HJC C91 represents South Korean head protection design, incorporates aerodynamic shell sculpting and multi-density EPS impact damping. Its Polycarbonate 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 86.5 dB at 100 km/h. For riders seeking a Polycarbonate Open Face helmet tailored to an Intermediate Oval head shape, the C91 delivers verified safety and long-distance rider comfort.", "finish_profile": "HJC C91 Silver (gloss finish) u2014 Treated with a mirror-finish deep gloss clearcoat that repels road grime and simplifies bug cleanup.", "editorial_note": "HJC C91 in HJC C91 Silver. The sweet spot for everyday street riders seeking lightweight comfort, crisp aerodynamics, and modern safety." } ], "compatible_motorcycles": [], "pricing": { "visitor_country": "US", "currency": "USD", "best_price": "$0.00", "best_price_raw": 0, "offers": [ { "marketplace": "amazon-us", "price": 0, "currency": "USD", "availability": "unknown" } ] }, "reviews": { "average_rating": 0, "review_count": 0, "recent": [] }, "_tier": "bot" }