{"product_id":"giro-tyrant-spherical-helmet","title":"Giro Tyrant Spherical Helmet","description":"\u003cdiv\u003e\n  \u003cp\u003eThe \u003cstrong\u003eGiro Tyrant Spherical Helmet\u003c\/strong\u003e is built for trail and enduro riding with a protection system that goes beyond what standard MIPS helmets offer. \"Spherical\" refers to Giro's dual-layer foam technology developed with MIPS: an outer EPS layer handles high-energy impacts, while an inner EPP layer provides rebound characteristics for lower-speed tumbles and roll-around crashes. The two layers work like a ball and socket, redirecting impact energy away from the head across a broader range of crash scenarios than a single-foam construction addresses — the kind of range that matters on trail, where crashes happen at varying speeds and on unpredictable terrain.\u003c\/p\u003e\n\n  \u003cp\u003eThe two-piece shell combines an in-mold EPS\/EPP upper with a HardBody polycarbonate lower wrap permanently fused to the liner. The hard outer surface at the lower edge adds meaningful impact resistance where trail debris — rocks, roots, the ground — is most likely to make contact, without the weight penalty of a fully hard-shelled helmet. Fit is handled by the Roc Loc Air DH system, which suspends the helmet slightly off the skull to open a direct airflow channel over the head. The DH designation isn't marketing; it signals the system was designed for the stability demands of descending, where a helmet that shifts or bounces is genuinely distracting. Adjustment is tool-free and quick to dial.\u003c\/p\u003e\n\n  \u003cp\u003eFourteen vents with internal channeling move air through the helmet efficiently, supplemented by cheek pad ventilation for sweat management during technical climbs. The Stack Ventilation design at the brow line draws warm, humid air upward and away from goggles — a practical feature for riders who've dealt with fogging mid-run. The tool-free bolt-on visor adjusts vertically without tools and offers enough range to stage goggles when the terrain doesn't require them, keeping them accessible without having to stash them in a pack.\u003c\/p\u003e\n\n  \u003ch3\u003eSpecs at a Glance\u003c\/h3\u003e\n  \u003cul class=\"specs_at_a_glance\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e MIPS Spherical — dual-layer EPS + EPP, ball-and-socket construction\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShell:\u003c\/strong\u003e In-mold EPS\/EPP upper + HardBody polycarbonate lower wrap\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFit System:\u003c\/strong\u003e Roc Loc Air DH — tool-free, suspends helmet off skull for airflow\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e 14 vents with internal channels; Stack Ventilation; cheek pad ventilation\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVisor:\u003c\/strong\u003e Tool-free bolt-on, vertically adjustable; goggle-compatible\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~600g (medium)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e US CPSC; CE\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSizes:\u003c\/strong\u003e XS (47–51cm), S (51–55cm), M (55–59cm), L (59–63cm), XL (61–65cm)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eColors:\u003c\/strong\u003e Matte Metallic Black\/Ano Lime, Matte Black Hypnotic, Matte Black, Matte Citron, Matte Portaro Grey\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eDesign Benefits\u003c\/h3\u003e\n  \u003col class=\"design_benefits\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMIPS Spherical dual-foam system\u003c\/strong\u003e combines EPS for high-energy impact absorption with EPP rebound characteristics for low-speed crashes — a ball-and-socket construction that addresses a wider range of impact scenarios than single-foam designs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHardBody polycarbonate lower wrap\u003c\/strong\u003e adds durable impact resistance at the lower shell edges where trail contact is most common, without the full weight of a hard-shell construction.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRoc Loc Air DH fit system\u003c\/strong\u003e suspends the helmet off the skull for direct airflow over the head and a stable, locked-in fit suited to rough descending terrain.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStack Ventilation at the brow line\u003c\/strong\u003e draws warm air upward and away from goggles, reducing fogging during technical riding where goggles and full effort overlap.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTool-free vertically adjustable visor\u003c\/strong\u003e accommodates goggle staging without carrying tools — accessible on trail without removing the helmet.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/div\u003e","brand":"Giro","offers":[{"title":"Matte Metallic Black \/ Ano Lime \/ S","offer_id":43652171726892,"sku":"7113407","price":111.99,"currency_code":"USD","in_stock":false},{"title":"Matte Metallic Black \/ Ano Lime \/ M","offer_id":43652171628588,"sku":"7113408","price":111.99,"currency_code":"USD","in_stock":false},{"title":"Matte Metallic Black \/ Ano Lime \/ L","offer_id":43652171563052,"sku":"7113409","price":111.99,"currency_code":"USD","in_stock":false},{"title":"Matte Black Hypnotic \/ S","offer_id":44030430838828,"sku":"7113389","price":120.0,"currency_code":"USD","in_stock":true},{"title":"Matte Black \/ L","offer_id":44030432739372,"sku":"7113382","price":120.0,"currency_code":"USD","in_stock":false},{"title":"Matte Black \/ M","offer_id":44030432804908,"sku":"7113381","price":120.0,"currency_code":"USD","in_stock":false},{"title":"Matte Black \/ S","offer_id":44030432837676,"sku":"7113380","price":120.0,"currency_code":"USD","in_stock":true},{"title":"Matte Citron \/ M","offer_id":44030432903212,"sku":"7113399","price":120.0,"currency_code":"USD","in_stock":false},{"title":"Matte Portaro Grey \/ L","offer_id":44030432935980,"sku":"7129334","price":111.99,"currency_code":"USD","in_stock":false},{"title":"Matte Portaro Grey \/ M","offer_id":44030433034284,"sku":"7129333","price":111.99,"currency_code":"USD","in_stock":false},{"title":"Matte Portaro Grey \/ S","offer_id":44030433067052,"sku":"7129332","price":111.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/giro-tyrant-spherical-helmet-1096219.jpg?v=1771300363","url":"https:\/\/ricycles.com\/products\/giro-tyrant-spherical-helmet","provider":"RA Cycles","version":"1.0","type":"link"}