I've got I've that looks a bit like this. ATGATT means a full-face helmet. That's why I have a face, on account of using it for an unconventional braking technique after a high-side caused by getting sideswiped by an SUV.
Oh, I was talking about using my face to reduce my speed as I was going down the highway, with my bike catching up to me. No brown pants but a good 18hr hospital stay.
That's why even though I ride a cruiser I wear a full face helmet. I am glad there are more casual looking full face helmets instead of only sport bike looking ones. No more excuse of "it ruins the style" or whatever.
Yeah I am not saying don't wear a helmet if yours is expired, a 10 year old helmet is definitely better than no helmet. But if your helmet is expired and you are in a crash, it could affect your legal proceedings/compensation and increases your chances of getting a head injury. Afaik the part that actually expires is the foam that actually protects your head from head/brain injury.
I rode for about 15 years with expired helmets I would get from thrift stores and garage sales before I found it they wouldn't help much in a crash. I was, however, in a minor crash where the expired helmet (Shoei) held up and probably saved me from a concussion. So better something than nothing.
In my experiences, the helmet is the least needed piece of gear. By that I mean, definitely also wear armoured jacket, pants, gloves, and boots. With all that and a helmet, you'll only need to worry about breaking bones, which is nothing in comparison to the other outcomes. Neglect the other gear and you'll wish you didn't wear a helmet.
Edit: Hm, apparently a lot of.Lemmingtons need to wear helmets off the bike too, or make it past the first line of a comment before reacting, or there's a lot of squids here.
Well that all depends on how fast the sedan that hit you was going as you minded your own business going through the green light. Either way, "Huh?" was probably the last word ever spoken.