{"product_id":"rpha31-dereen-mc5sf","title":"RPHA31 Dereen MC5SF","description":"\u003ch2 dir=\"ltr\"\u003eHJC RPHA 31 – Premium P.I.M.™ open-face helmet, visor deflector and anti-opening lock\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003eThe HJC RPHA 31 is the premium open-face helmet in the RPHA series, designed to reduce noise and drag thanks to a dedicated visor deflector and a locking system that secures the visor against accidental opening. With its P.I.M.™ shell, DMS sun visor and SMART HJC compatibility, it is designed for discerning urban riders.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003eHJC RPHA 31 open-face helmet: the premium model designed for silence\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eA high-performance open-face helmet must limit wind noise without compromising lightness. The HJC RPHA 31 was designed with this in mind, featuring a P.I.M.™ – Premium Integrated Matrix shell, a high-performance material made of epoxy resin-infused fibrous fabrics, available in four shell sizes. Its aerodynamic design improves airflow penetration, while an air bypass channel through the ventilation reduces drag and wind noise.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe HJ-39 visor, Pinlock-ready – with a 120XLT lens included in the box – filters 99% of UV rays and features a scratch-resistant and anti-fog treatment. The visor mounting kit provides smooth movement and improved sealing, while a dedicated visor deflector reduces noise levels and blocks incoming wind. A locking system completes the setup, further reducing noise and drag while securing the visor to prevent accidental opening.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe extended shell and chin EPS provide a full-face fit, offering a more enveloping hold than a standard open-face helmet. The helmet also features a 3-position adjustable DMS sun visor, full front-to-back ventilation with 2 air inlets and 4 air outlets, and is compatible with the SMART HJC 11B, 21B and 50B 2nd Generation Bluetooth systems, sold separately.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003eKey features of the HJC RPHA 31\u003c\/h3\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003eP.I.M.™ – Premium Integrated Matrix shell: four shell sizes, aerodynamic design.\u003c\/li\u003e\n\n\u003cli\u003eAir bypass channel: reduces drag and wind noise.\u003c\/li\u003e\n\n\u003cli\u003eHJ-39 visor: Pinlock-ready (120XLT lens included), scratch-resistant and anti-fog treatment.\u003c\/li\u003e\n\n\u003cli\u003eDedicated visor deflector: reduces noise and blocks incoming wind.\u003c\/li\u003e\n\n\u003cli\u003eVisor lock: secures against accidental opening, reduces noise and drag.\u003c\/li\u003e\n\n\u003cli\u003eExtended shell and chin EPS: full-face fit.\u003c\/li\u003e\n\n\u003cli\u003e3-position adjustable DMS sun visor.\u003c\/li\u003e\n\n\u003cli\u003eFull front-to-back ventilation: 2 air inlets and 4 air outlets.\u003c\/li\u003e\n\n\u003cli\u003eCompatible with SMART HJC 11B, 21B and 50B 2nd Generation Bluetooth (sold separately).\u003c\/li\u003e\n\n\u003cli\u003e5-year warranty.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003eHelmet type: premium open-face\u003c\/li\u003e\n\n\u003cli\u003eShell material: P.I.M.™ – Premium Integrated Matrix, epoxy resin-infused fibrous fabrics\u003c\/li\u003e\n\n\u003cli\u003eNumber of shell sizes: 4\u003c\/li\u003e\n\n\u003cli\u003eMain visor: HJ-39, scratch-resistant and anti-fog treatment, 99% UV protection\u003c\/li\u003e\n\n\u003cli\u003ePinlock: 120XLT lens included in the box\u003c\/li\u003e\n\n\u003cli\u003eVisor mounting kit: smooth movement, improved sealing\u003c\/li\u003e\n\n\u003cli\u003eVisor deflector: noise reduction, blocks incoming wind\u003c\/li\u003e\n\n\u003cli\u003eVisor lock: secures against accidental opening\u003c\/li\u003e\n\n\u003cli\u003eSun visor: DMS – Dynamic Multi-Step Sunshield, adjustable to 3 positions\u003c\/li\u003e\n\n\u003cli\u003eVentilation: full front-to-back, 2 air inlets and 4 air outlets\u003c\/li\u003e\n\n\u003cli\u003eFit: extended shell and chin EPS for full-face support\u003c\/li\u003e\n\n\u003cli\u003eInterior: antibacterial fabric that promotes moisture release and quick drying\u003c\/li\u003e\n\n\u003cli\u003ePads: removable, washable and interchangeable cheek pads across all sizes\u003c\/li\u003e\n\n\u003cli\u003eClosure: one-touch buckle\u003c\/li\u003e\n\n\u003cli\u003eGlasses channel\u003c\/li\u003e\n\n\u003cli\u003eIntercom: compatible with SMART HJC 11B, 21B and 50B 2nd Generation Bluetooth, sold separately\u003c\/li\u003e\n\n\u003cli\u003eIncluded in the box: Pinlock 120XLT lens\u003c\/li\u003e\n\n\u003cli\u003eSizes: up to 2XL\u003c\/li\u003e\n\n\u003cli\u003eWeight: approximately 1,350 to 1,450 g depending on size and measurement sources; weight may vary depending on helmet size, to be checked on the official technical sheet\u003c\/li\u003e\n\n\u003cli\u003eApproval: ECE 22.06\u003c\/li\u003e\n\n\u003cli\u003eWarranty: 5 years\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003eWhy choose the HJC RPHA 31?\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eThe RPHA 31 stands out for its specific focus on noise and aerodynamics, which is rare for an open-face helmet: an air bypass channel, a dedicated visor deflector and an anti-opening locking system all work together to limit the noise usually associated with this type of helmet.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eIts extended shell and chin EPS provide a more comprehensive fit than a standard open-face helmet, approaching the support of a more full-face helmet while retaining the benefits of an open-face. The 5-year warranty confirms the helmet's premium positioning within the RPHA collection.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eComfort and ventilation\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eThe RPHA 31's full front-to-back ventilation, with 2 air inlets and 4 air outlets, ensures efficient daily airflow. The removable and washable antibacterial interior completes this approach, with cheek pads that are interchangeable across all sizes to refine the fit.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eVisor deflector and lock\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eThe dedicated visor deflector blocks incoming wind while reducing perceived noise levels, a valuable asset on the motorway or at sustained speeds. The locking system reinforces this approach by securing the visor against accidental opening, while also helping to reduce noise and drag.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eHJ-39 visor and DMS sun visor\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eThe HJ-39 visor features a scratch-resistant and anti-fog treatment, Pinlock compatibility and a lens included in the box. The DMS sun visor, adjustable to 3 positions, allows you to adapt precisely to changes in brightness during your journey.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003eCare instructions\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eClean the HJC RPHA 31 visor with lukewarm water and a soft microfiber cloth, avoiding any harsh household products that could damage the scratch-resistant and anti-fog treatment.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAs the top cover and cheek pads are removable, wash them regularly by hand with mild soap, then leave them to air dry away from any direct heat source.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003ePeriodically check that the deflector and visor locking system are working correctly to ensure the helmet remains reliable and quiet over time.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003eFrequently asked questions about the HJC RPHA 31\u003c\/h3\u003e\n\u003ch4 dir=\"ltr\"\u003eIs the HJC RPHA 31 ECE 22.06 approved?\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eYes. The HJC RPHA 31 meets the European ECE 22.06 standard, which includes, among other things, tests on impact absorption and the strength of the helmet's various components.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eHow does the HJC RPHA 31 reduce wind noise?\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eThe helmet combines several elements designed for this purpose: an air bypass channel through the ventilation, a visor deflector that blocks incoming wind, and a visor locking system that further reduces noise and drag.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eIs Pinlock supplied with the HJC RPHA 31?\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eYes. The Pinlock 120XLT lens is included in the box, ready to be installed on the Pinlock-ready HJ-39 visor.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003eCan an intercom be installed on the HJC RPHA 31?\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eYes. The helmet is compatible with the SMART HJC 11B, 21B and 50B 2nd Generation Bluetooth systems, sold separately.\u003c\/p\u003e","brand":"HJC","offers":[{"title":"XS","offer_id":54469393711451,"sku":"253565-6-15","price":468.3,"currency_code":"GBP","in_stock":false},{"title":"S","offer_id":54469393744219,"sku":"253565-6-16","price":468.3,"currency_code":"GBP","in_stock":false},{"title":"M","offer_id":54469393776987,"sku":"253565-6-17","price":468.3,"currency_code":"GBP","in_stock":false},{"title":"L","offer_id":54469393809755,"sku":"253565-6-18","price":468.3,"currency_code":"GBP","in_stock":false},{"title":"XL","offer_id":54469393842523,"sku":"253565-6-19","price":468.3,"currency_code":"GBP","in_stock":false},{"title":"XXL","offer_id":54469393875291,"sku":"253565-6-20","price":468.3,"currency_code":"GBP","in_stock":false}],"url":"https:\/\/icasque.com\/en-uk\/products\/rpha31-dereen-mc5sf","provider":"iCasque","version":"1.0","type":"link"}