{"product_id":"hjc-f31-solid-motorcycle-helmet-semi-flat-black-small-part-ja21nus4xbsv","title":"HJC F31 Solid Motorcycle Helmet, Semi-Flat Black, Small – Part JA21NUS4XBSV","description":"F31 Helmet - Solid - Semi-Flat Black - Small\n\u003cp\u003eThe HJC F31 Helmet combines a lightweight Advanced Fiberglass Composite (AFC) shell with a streamlined open-face design for comfortable everyday motorcycle riding. This small helmet is finished in Semi-Flat Black and uses a Double-D ring closure with a pull tab for secure, adjustable fastening. The shell construction is engineered to provide a balance of strength, comfort, and reduced weight for commuting and touring applications.\u003c\/p\u003e\u003cp\u003eThe HJC F31 includes an HJ-43 visor that is Pinlock prepared, anti-scratch coated, and designed to provide 99% UV protection. A dynamic multi-step sun shield allows riders to adjust coverage for changing light conditions. The helmet is also ready for the SMART HJC 2nd Generation 11B, 21B, and 50B Bluetooth communication systems, which are sold separately. This model is manufactured by HJC and carries manufacturer and vendor part number JA21NUS4XBSV.\u003c\/p\u003e\u003cp\u003eComfort features include a moisture-wicking, quick-drying, and odor-resistant interior. The crown and cheek pads are removable and washable for convenient maintenance, while interchangeable cheek pads across all sizes help support replacement and fit adjustments. The Advanced Channeling Ventilation System (ACS) uses three intake vents and one exhaust to promote full front-to-back airflow, helping move heat and humidity away from the rider. The HJC F31 is intended for riders seeking practical protection, adaptable visibility, and ventilation in a solid-color motorcycle helmet.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eShell: Advanced Fiberglass Composite construction balances durability, comfort, and lightweight performance.\u003c\/li\u003e\n\u003cli\u003eClosure: Double-D ring fastening system with pull tab provides a secure and adjustable fit.\u003c\/li\u003e\n\u003cli\u003eSun Shield: Dynamic multi-step internal sun shield supports adjustable coverage in changing light.\u003c\/li\u003e\n\u003cli\u003eVisor: HJ-43 visor is Pinlock prepared, anti-scratch coated, and provides 99% UV protection.\u003c\/li\u003e\n\u003cli\u003eCommunication Ready: Compatible with SMART HJC 2nd Generation 11B, 21B, and 50B Bluetooth systems, sold separately.\u003c\/li\u003e\n\u003cli\u003eInterior: Moisture-wicking, quick-drying, and odor-resistant interior helps improve riding comfort.\u003c\/li\u003e\n\u003cli\u003ePads: Removable and washable crown and cheek pads support easy cleaning; interchangeable cheek pads fit across all sizes.\u003c\/li\u003e\n\u003cli\u003eVentilation: Advanced Channeling Ventilation System uses three intake vents and one exhaust for front-to-back airflow.\u003c\/li\u003e\n\u003cli\u003eFitment: Small-size HJC F31 motorcycle helmet for riders seeking a versatile helmet for commuting and touring.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HJC","offers":[{"title":"Default Title","offer_id":67546708017387,"sku":"01043749","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/5625964.png?v=1790675358","url":"https:\/\/ctracingservices.com\/products\/hjc-f31-solid-motorcycle-helmet-semi-flat-black-small-part-ja21nus4xbsv","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}