{"product_id":"hjc-f31-bask-mc5-motorcycle-helmet-medium-part-ja21nus5405v","title":"HJC F31 Bask MC5 Motorcycle Helmet, Medium, Part JA21NUS5405V","description":"F31 Helmet - Bask - MC5 - Medium\n\u003cp\u003eThe HJC F31 Bask MC5 motorcycle helmet combines a lightweight Advanced Fiberglass Composite (AFC) shell with practical touring and street-riding features. This medium helmet is designed for riders seeking balanced protection, comfort, ventilation, and everyday usability. The Double-D ring closure with pull tab provides a secure, adjustable fit, while the removable and washable crown and cheek pads help maintain a clean interior over time.\u003c\/p\u003e\u003cp\u003eVisibility and airflow are central to the F31’s design. The HJ-43 visor is Pinlock prepared, anti-scratch coated, and provides 99% UV protection for clearer vision in varying riding conditions. A dynamic multi-step sun shield allows riders to select an optimized position as light conditions change. The Advanced Channeling Ventilation System (ACS) uses three intake vents and one exhaust vent to create front-to-back airflow, helping remove heat and humidity from inside the helmet.\u003c\/p\u003e\u003cp\u003eThe interior features moisture-wicking, quick-drying, and odor-resistant materials for improved comfort during extended rides. Interchangeable cheek pads across all helmet sizes support flexible fit adjustment and replacement options. The helmet is ready for HJC SMART 2nd Generation Bluetooth systems, including the 11B, 21B, and 50B units, which are sold separately. The HJC F31 Bask MC5 in Medium is manufacturer part number JA21NUS5405V and vendor part number JA21NUS5405V. It is suited for riders looking for a comfortable full-face helmet with integrated sun protection, prepared visor technology, and adaptable communication-system compatibility.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eShell: Advanced Fiberglass Composite construction provides a lightweight, durable helmet shell\u003c\/li\u003e\n\u003cli\u003eClosure: Double-D ring fastening system with pull tab supports a secure and adjustable fit\u003c\/li\u003e\n\u003cli\u003eSun Shield: Dynamic multi-step internal sun shield allows optimized positioning for changing light conditions\u003c\/li\u003e\n\u003cli\u003eBluetooth Ready: Compatible with HJC SMART 2nd Generation 11B, 21B, and 50B systems, sold separately\u003c\/li\u003e\n\u003cli\u003eInterior: Moisture-wicking, quick-drying, and odor-resistant materials enhance riding comfort\u003c\/li\u003e\n\u003cli\u003eInterior Pads: Removable and washable crown and cheek pads simplify cleaning and maintenance\u003c\/li\u003e\n\u003cli\u003eFit Adjustment: Interchangeable cheek pads are compatible across all helmet sizes\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\u003eVentilation: Advanced Channeling Ventilation System uses three intake vents and one exhaust vent for front-to-back airflow\u003c\/li\u003e\n\u003cli\u003eSize: Medium\u003c\/li\u003e\n\u003cli\u003eModel: F31 Bask MC5\u003c\/li\u003e\n\u003cli\u003eBrand: HJC\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: JA21NUS5405V\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: JA21NUS5405V\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HJC","offers":[{"title":"Default Title","offer_id":67547865645291,"sku":"01043720","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/5626142.png?v=1790681905","url":"https:\/\/ctracingservices.com\/products\/hjc-f31-bask-mc5-motorcycle-helmet-medium-part-ja21nus5405v","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}