{"product_id":"ls2-ff805-thunder-gp-aero-gloss-carbon-irid-dynamic-clear","title":"LS2 FF805 Thunder GP Aero Gloss Carbon + IRID Dynamic Clear – Photochromic Racing Helmet","description":"\u003cp\u003eThe same helmet and the same photochromic visor as the matt version, in the finish that can be repaired. That is the whole difference, and it is a bigger one than it looks: a gloss clear coat over carbon can be polished, and a matt one cannot. The rest is an FF805 Thunder GP Aero — 100 per cent carbon, 1,280 g declared, ECE 22.06 — supplied with the LS2 IRID Dynamic Clear, a screen that darkens in sun and clears again on its own.\u003c\/p\u003e\n\n\u003ch3\u003eMatt or gloss on a carbon shell: the real differences\u003c\/h3\u003e\n\u003cp\u003eBoth finishes are clear coat over the same weave. What separates them is what happens to that coat when something touches it.\u003c\/p\u003e\n\u003cp\u003eA gloss coat is smooth, so a light scratch is a shallow groove in a level surface and a mild polishing compound levels the surface back down to meet it. That is why swirl marks, glove scuffs and the grey mark a helmet picks up from a tank bag come out of gloss and stay in matt. A matt coat gets its look from a microscopically rough surface, and any compound that removes material also removes the roughness — you end up with a shiny patch that no amount of further work blends away.\u003c\/p\u003e\n\u003cp\u003eGloss also sheds dirt more easily. Insects and road film sit on the surface rather than in it, so they lift with a wet cloth and less pressure, which in turn means fewer of the marks the finish would otherwise collect.\u003c\/p\u003e\n\u003cp\u003eThe case for matt is aesthetic and one practical point: it hides fingerprints, and it does not throw a hotspot into a photograph. If you like the look, buy the look. If you expect the helmet to live in a garage, get carried by the strap and land on a workbench a few hundred times, gloss will age better.\u003c\/p\u003e\n\n\u003ch3\u003eGloss over carbon, five years on\u003c\/h3\u003e\n\u003cp\u003eThe failure mode is not scratching, it is yellowing. Clear coats amber slowly under ultraviolet, and over a dark carbon weave that reads as a warm cast rather than a colour change — most people never notice unless they park a new one next to an old one.\u003c\/p\u003e\n\u003cp\u003eYou cannot stop it, but you can slow it: keep the helmet out of direct sun when it is not on your head, and out of a car rear window entirely. A helmet bag is a UV filter as well as a dust cover, and the GP Aero comes with one.\u003c\/p\u003e\n\n\u003ch3\u003eThe Dynamic Clear, in practical terms\u003c\/h3\u003e\n\u003cp\u003eA photochromic visor swings from 60 per cent light transmission to 20 per cent as ultraviolet hits it. LS2 quotes 0.09 seconds for the transition, 20 g for the visor, an integrated anti-fog coating tested to 120 seconds, and no batteries — the tint is chemistry, not electronics.\u003c\/p\u003e\n\u003cp\u003eTwo things to plan around. Its lightest state is 60 per cent, and a visor needs 80 per cent to be approved for use at any hour, so this is a daylight screen and the helmet's own clear one is what you fit for a ride home in the dark. And behind a tall touring screen it will darken less than in open air, because screens absorb the ultraviolet that drives it.\u003c\/p\u003e\n\n\u003ch3\u003eThe shell it is all attached to\u003c\/h3\u003e\n\u003cp\u003eCarbon fibre throughout in a 6K weave, one outer shell size covering XS to XXL, and 1,280 g with a 50 g tolerance as declared by LS2. ECE 22.06. The FIM homologation in the FF805 family belongs to the Thunder GP PRO, which uses a 9K cloth over three shell sizes.\u003c\/p\u003e\n\u003cp\u003eThe single shell is the specification we would ask you to try on. Every size shares one outer volume and the fit is made in padding, which is generous in the middle of the range and less so at the ends.\u003c\/p\u003e\n\n\u003ch3\u003eAir path\u003c\/h3\u003e\n\u003cp\u003eThree intakes — chin, brow, crown — feeding channels moulded into the EPS, with the exhaust under the rear spoiler and a breath deflector behind the chin bar. All of it is workable with gloves on.\u003c\/p\u003e\n\n\u003ch3\u003eDouble D-ring and emergency release\u003c\/h3\u003e\n\u003cp\u003eA double D-ring rather than a ratchet, because it cannot be fastened almost right, and cheek pads on LS2's Emergency Release System: red tabs that pull the padding clear so a helmet can be lifted off a rider without rotating the neck.\u003c\/p\u003e\n\n\u003ch3\u003eECE 22.06\u003c\/h3\u003e\n\u003cp\u003eThe current European standard, mandatory since January 2024. It tests eighteen impact points rather than five, at more than one speed, adds an oblique impact against an abrasive anvil to measure rotational acceleration, and assesses the Brain Injury Criterion. The visor mechanism and vents are certified as fitted.\u003c\/p\u003e\n\n\u003ch3\u003eWhat \"ready for LS2 Intercom\" actually means\u003c\/h3\u003e\n\u003cp\u003eIt means the shell has been moulded with the recesses a communication system needs, not that one is included. There are pockets in the EPS for speakers, a channel for the microphone lead and a flat area on the shell edge for the clamp, so a unit fits without you cutting foam out of a new helmet.\u003c\/p\u003e\n\u003cp\u003eTwo caveats worth having before you order a system. Speaker depth is the thing that goes wrong: a race helmet has tighter cheek pads than a touring one, and a thick speaker will press on your ear over a long day, so choose the slim version if the system offers one. And on a helmet with this much airflow, wind noise sets the volume you will end up using — an intercom in a race shell at speed is for short exchanges rather than conversation.\u003c\/p\u003e\n\n\u003ch3\u003eCleaning it without ruining it\u003c\/h3\u003e\n\u003cp\u003eWarm water and a soft cloth, always wet, never dry — a dry wipe drags grit across the clear coat and puts in exactly the marks you would then have to polish out. Soak insects off rather than scrubbing them. Keep solvents and household cleaners away from the visor entirely: the anti-fog and anti-scratch coatings are the first things they take off, and a coated visor is not repairable.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this helmet does not have\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo FIM homologation — the GP PRO holds that in this family.\u003c\/li\u003e\n\u003cli\u003eNo drop-down sun visor; the photochromic screen replaces it.\u003c\/li\u003e\n\u003cli\u003eA 60 per cent clear state, which is a daylight transmission rather than a night one.\u003c\/li\u003e\n\u003cli\u003eOne outer shell size for six helmet sizes.\u003c\/li\u003e\n\u003cli\u003eNo SHARP, ADAC or Snell result for any FF805 Thunder.\u003c\/li\u003e\n\u003cli\u003eNo published noise figure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLS2 FF805 Thunder GP Aero helmet — Gloss Carbon\u003c\/li\u003e\n\u003cli\u003eLS2 IRID Dynamic Clear photochromic visor\u003c\/li\u003e\n\u003cli\u003eCarrying backpack\u003c\/li\u003e\n\u003cli\u003eTinted visor\u003c\/li\u003e\n\u003cli\u003ePinlock Max Vision 120XLT anti-fog lens\u003c\/li\u003e\n\u003cli\u003eTear-off films\u003c\/li\u003e\n\u003cli\u003eReflective stickers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLS2 issues one packing list for the GP Aero model and none for the Dynamic versions specifically; the list above is theirs plus the visor this reference is built around.\u003c\/p\u003e\n\n\u003ch3\u003eSize guide\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eHead circumference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eXS\u003c\/td\u003e\n\u003ctd\u003e53–54 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e55–56 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e57–58 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e59–60 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e61–62 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXXL\u003c\/td\u003e\n\u003ctd\u003e63–64 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eHelmet\u003c\/em\u003e — LS2 FF805 Thunder GP Aero\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eReference\u003c\/em\u003e — 168058815\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSurface\u003c\/em\u003e — Gloss Carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSecond visor\u003c\/em\u003e — LS2 IRID Dynamic Clear, photochromic and homologated for road use\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eLight range\u003c\/em\u003e — 60 per cent down to 20 per cent VLT\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCertification\u003c\/em\u003e — ECE 22.06\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eConstruction\u003c\/em\u003e — 100 per cent carbon fibre, 6K, one shell size\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDeclared weight\u003c\/em\u003e — 1,280 g ± 50 g; the Dynamic visor weighs 20 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eChin strap\u003c\/em\u003e — double D-ring, emergency release cheek pads\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSize range\u003c\/em\u003e — XS to XXL, 53–64 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eFog control\u003c\/em\u003e — Pinlock 120XLT MaxVision in the box; the Dynamic visor is separately coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eSwitching\u003c\/em\u003e — 0.09 seconds, no batteries, waterproof\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eAirflow\u003c\/em\u003e — chin, brow and top intakes, spoiler exhaust, breath deflector\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eLining\u003c\/em\u003e — removable, washable, laser-cut foam\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LS2","offers":[{"title":"XS \/ Gloss Carbon + IRID Dynamic Clear","offer_id":53644220465418,"sku":"168058815_XS","price":550.06,"currency_code":"CHF","in_stock":true},{"title":"S \/ Gloss Carbon + IRID Dynamic Clear","offer_id":53644220498186,"sku":"168058815_S","price":550.06,"currency_code":"CHF","in_stock":true},{"title":"M \/ Gloss Carbon + IRID Dynamic Clear","offer_id":53644220530954,"sku":"168058815_M","price":550.06,"currency_code":"CHF","in_stock":true},{"title":"L \/ Gloss Carbon + IRID Dynamic Clear","offer_id":53644220563722,"sku":"168058815_L","price":550.06,"currency_code":"CHF","in_stock":true},{"title":"XL \/ Gloss Carbon + IRID Dynamic Clear","offer_id":53644220596490,"sku":"168058815_XL","price":550.06,"currency_code":"CHF","in_stock":true},{"title":"XXL \/ Gloss Carbon + IRID Dynamic Clear","offer_id":53644220629258,"sku":"168058815_XXL","price":550.06,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/168058815.png?v=1788853816","url":"https:\/\/inter-pace.com\/en-li\/products\/ls2-ff805-thunder-gp-aero-gloss-carbon-irid-dynamic-clear","provider":"Inter-Pace","version":"1.0","type":"link"}