{"product_id":"hjc-rpha-31-dereen-mc21-open-face-helmet-small","title":"HJC RPHA 31 Dereen MC21 Open-Face Helmet - Small","description":"RPHA 31 Helmet - Dereen - MC21 - Small\n\u003cp\u003eThe HJC RPHA 31 Dereen MC21 is an open-face helmet designed with a Premium Integrated Matrix (PIM) Evo shell and multi-density EPS to support shock resistance and rider protection. Its aerodynamic shell was developed through wind tunnel testing to reduce air resistance, improve stability at speed, and help create a quieter ride.\u003c\/p\u003e\n\u003cp\u003eThe Pinlock 120XLT DKS467-ready HJ-39 shield provides 99% UV protection and features an anti-scratch coating. An integrated smoke-tinted sun visor with anti-fog coating deploys through the bottom-positioned operation system and offers multi-step adjustment, including positioning up to 10 mm closer to the face for personalized shading.\u003c\/p\u003e\n\u003cp\u003eFull front-to-back airflow is provided by two intakes and four exhausts. The RPHA 31 also includes a shield holder designed to reduce noise and drag while keeping the visor secure. It accommodates second-generation SMART HJC Bluetooth communication systems, which are sold separately.\u003c\/p\u003e\n\u003cp\u003eThe RPHA Premium Fit interior uses advanced antibacterial fabric with moisture-wicking and quick-drying properties. Removable, washable crown and cheek pads, 3D contour cheek pads, interchangeable cheek pads across all sizes, reflective material, and an elongated shell with extended chin EPS support a customized fit and full face-level coverage. This Small-size helmet is identified by HJC part number JA19NUS4221V.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePremium Integrated Matrix (PIM) Evo Shell: Uses Carbon-Aramid Hybrid and Natural Fiber reinforcement materials for shock-resistant performance, comfort, and lightness.\u003c\/li\u003e\n\u003cli\u003eAerodynamic Design: Wind tunnel-developed shell reduces air resistance and supports stability at high speed.\u003c\/li\u003e\n\u003cli\u003eHJ-39 Shield: Pinlock 120XLT DKS467-ready shield provides 99% UV protection and has an anti-scratch coating.\u003c\/li\u003e\n\u003cli\u003eIntegrated Sun Visor: Smoke-tinted, anti-fog sun visor deploys through a bottom-positioned operation system.\u003c\/li\u003e\n\u003cli\u003eMulti-Step Sun Visor Adjustment: Allows the sun visor to be positioned up to 10 mm closer to the face.\u003c\/li\u003e\n\u003cli\u003eVentilation: Full front-to-back airflow is provided by two intakes and four exhausts.\u003c\/li\u003e\n\u003cli\u003eQuiet Ride Design: Shield holder reduces noise and drag forces while holding the visor securely.\u003c\/li\u003e\n\u003cli\u003eBluetooth Compatibility: Accommodates second-generation SMART HJC Bluetooth communication systems, sold separately.\u003c\/li\u003e\n\u003cli\u003ePremium Fit Interior: Advanced antibacterial fabric provides moisture-wicking and quick-drying performance.\u003c\/li\u003e\n\u003cli\u003eRemovable Interior: Crown and cheek pads are removable and washable.\u003c\/li\u003e\n\u003cli\u003eCustomizable Fit: 3D contour cheek pads and interchangeable cheek pads throughout all sizes support fit adjustment.\u003c\/li\u003e\n\u003cli\u003eReflective Material: Reflective material supports visibility.\u003c\/li\u003e\n\u003cli\u003eFull Face-Level Coverage: Elongated shell and extended chin EPS provide encompassing coverage.\u003c\/li\u003e\n\u003cli\u003eSize: Small.\u003c\/li\u003e\n\u003cli\u003ePart Number: JA19NUS4221V.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HJC","offers":[{"title":"Default Title","offer_id":50646471016640,"sku":"01043822","price":529.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0651\/0175\/8656\/files\/5626294.png?v=1793355787","url":"https:\/\/metricdreamrides.com\/products\/hjc-rpha-31-dereen-mc21-open-face-helmet-small","provider":"Metric Dream Rides","version":"1.0","type":"link"}