{"product_id":"hjc-rpha-31-dereen-mc5sf-open-face-helmet-small-part-ja19nus42s5v","title":"HJC RPHA 31 Dereen MC5SF Open-Face Helmet, Small – Part JA19NUS42S5V","description":"RPHA 31 Helmet - Dereen - MC5SF - Small\n\u003cp\u003eThe HJC RPHA 31 Dereen MC5SF is a small open-face motorcycle helmet designed for riders who want advanced protection, refined aerodynamics, and everyday comfort. It features HJC’s Premium Integrated Matrix (PIM) Evo shell, constructed with carbon-aramid hybrid and natural fiber reinforcement materials for enhanced shock resistance, reduced weight, and improved comfort. The multi-density EPS liner helps manage impact energy while the aerodynamic shell design reduces air resistance and promotes stability at higher speeds.\u003c\/p\u003e\u003cp\u003eThe HJ-39 Pinlock 120XLT DKS467-ready shield provides 99% UV protection and includes an anti-scratch coating for lasting optical clarity. An integrated smoke-tinted sun visor features an anti-fog coating and deploys through the bottom-positioned operating system. Its multi-step adjustment allows the visor to move closer to the rider’s face for more personalized shading. The shield holder helps reduce noise and aerodynamic drag while keeping the visor securely positioned.\u003c\/p\u003e\u003cp\u003eVentilation is provided by two intake vents and four exhaust vents to promote front-to-back airflow during rides. The RPHA Premium Fit interior uses advanced antibacterial fabric with moisture-wicking and quick-drying properties. Removable, washable crown and cheek pads, along with interchangeable cheek pads across helmet sizes, support a customizable fit. Reflective material adds visibility in low-light conditions. The helmet also accommodates second-generation SMART HJC Bluetooth communication systems, sold separately, for integrated rider communication.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e The HJC RPHA 31 is intended for motorcycle and powersports riders seeking open-face coverage with a full face-level fit. Its elongated shell and extended chin EPS provide an encompassing fit, while the small size is designed for riders requiring a Small helmet. Manufacturer: HJC. Vendor part number: JA19NUS42S5V.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: Small\u003c\/li\u003e\n\u003cli\u003eModel: RPHA 31 Dereen MC5SF\u003c\/li\u003e\n\u003cli\u003eBrand: HJC\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: JA19NUS42S5V\u003c\/li\u003e\n\u003cli\u003eVendor part number: JA19NUS42S5V\u003c\/li\u003e\n\u003cli\u003eShell: Premium Integrated Matrix PIM Evo construction with carbon-aramid hybrid and natural fiber reinforcement\u003c\/li\u003e\n\u003cli\u003eProtection: Multi-density EPS liner supports impact energy management\u003c\/li\u003e\n\u003cli\u003eShield: HJ-39 Pinlock 120XLT DKS467-ready shield with 99% UV protection and anti-scratch coating\u003c\/li\u003e\n\u003cli\u003eSun visor: Smoke-tinted, anti-fog integrated visor with multi-step adjustment\u003c\/li\u003e\n\u003cli\u003eVentilation: Two intake vents and four exhaust vents provide front-to-back airflow\u003c\/li\u003e\n\u003cli\u003eInterior: Removable and washable antibacterial crown and cheek pads with moisture-wicking, quick-drying fabric\u003c\/li\u003e\n\u003cli\u003eFit: Interchangeable cheek pads and elongated shell design support a personalized full face-level fit\u003c\/li\u003e\n\u003cli\u003eVisibility: Reflective material improves rider visibility in low-light conditions\u003c\/li\u003e\n\u003cli\u003eCommunication: Compatible with second-generation SMART HJC Bluetooth communication systems, sold separately\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HJC","offers":[{"title":"Default Title","offer_id":67549678764267,"sku":"01043828","price":529.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/5627292.png?v=1790692514","url":"https:\/\/ctracingservices.com\/products\/hjc-rpha-31-dereen-mc5sf-open-face-helmet-small-part-ja19nus42s5v","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}