err on the side of caution you only get one head and there aint no transplants
If your head expands or contracts it would be advisable to change your helmet, because if it expands the original won't fit!
Loose helmets are also not recommended!
This question should be in the "What Oil" section.

To a Yorkshireman ?I have just had a new helmet delivered and the date stamp is 12/22
So it’s 18 months old already and I have just purchased it ?
Is that important?
Some experts say it is, some say it isn't.I have just had a new helmet delivered and the date stamp is 12/22
So it’s 18 months old already and I have just purchased it ?
Is that important?
my new Shoei is stamped as May 23 made but the paperwork gives warranty etc from purchase dateI have just had a new helmet delivered and the date stamp is 12/22
So it’s 18 months old already and I have just purchased it ?
Is that important?
Kind ofTo a Yorkshireman ?
Is this a rhetorical question JB ??
Being honestKind of
I was surprised that it was 18 months old and delivered new from a major uk retailer
) and £500 helmets dont necessarily fly off the shelves so 18 months old since made is not unreasonable IMO and as said i think the clock starts running once its boughtI get thatBeing honest
With an Arair or Shoei i would be surprised if it left the factory wharehouse within 6 months of being made - then it has to get here from Japan then get to a retailer, who are probably contracted to stock quite alot, and sit around (as people only swap their helmets every 5 years or so) and £500 helmets dont necessarily fly off the shelves so 18 months old since made is not unreasonable IMO and as said i think the clock starts running once its bought
And i daresay with japanese efficiency at the Arai factory they would take the oldest helmet they had on the shelf and post it to you for monday - 6 months oldI get that
But if ordered something from Japan today, it would be here by next Monday
However I do get the supply chain variants
Not unless it was on display in a south facing shop window for 18 months before it was delivered to you in a nice new shiny box;I have just had a new helmet delivered and the date stamp is 12/22
So it’s 18 months old already and I have just purchased it ?
Is that important?

Sounds almost human;; aging just sitting on a shelf;It’s not just UV. The plastics/foams/liners will suffer oxidative damage too. Unless you’re planning to seal it in a bag of inert gas when you’re not using it, it’s ageing, just sitting on the shelf.
And some pollutants may have an effect too.
And this will be quicker when it’s warm, so Barnsley & Dunfermline are likely less bad than Nice or Delhi.
(Though the pollution in Delhi…)

You sound just like my missus, she asks my advice then does what she wants to anywayCheers for replys guys, the fit on my old lid is still spot on but £70 off offer at J & S I couldn't resist I've treated myself to a new one.