It's supposed to crush and deform, slowing deceleration. Exploding and helmets that crack are a failure to operate as designed.
Lazmo, is that bottom pic a CT or MRI slice at your chin?
I get that and really that's more what I meant in my original post (silly me). the more the helmet crushes and deforms the slow the deceleration, yes?
Moving on, I was very, very, very lucky on my Tuesday afternoon ride.
I set out about 7pm for a quick ride before it got dark, around 8pm, on my local track by myself. Within the first 50m of starting my descent I ate shit big time! Moving along at about 35km/h my bike suddenly stopped and I went over the bars face first into the ground. It was a fast and hard impact, one of the hardest I have experienced. As soon as I could I put my fingers in my mouth to count the number of teeth missing and than ran them down the side of my nose to feel how broken it was.
I didn't count any teeth missing and my nose was straight. There was no blood for the first 20-30seconds and I thought holy shit I got away with it. After 20-30seconds it started pissing down my face. I pulled out my phone, called me dad, told him what I thought my injuries were and that overall I was pretty good considering and told him where to meet me. I cant remember walking my bike out of the track, probably 75m to the road. Off we went to the hospital.
Final injury was a cut to the bridge of my nose needing 4 stitches accompanied by a 3.5 hour examination to ensure there was nothing else (much appreciated and great doctors and a cute nurse). Felt a little stiff the next couple of days in the neck and shoulders.
98% of the time I ride by myself (no one likes me) and in doing so am very aware of how fucked I could be if I wasn't conscious after a stack. I don't ride my hardest all the time but on many occasions I do, in this case I was pretty chilled out and it happened a on a really easy bit of track and I have no idea what I hit because there really isn't anything there.
That bloke in the video was lucky in two ways; 1) it wasn't as bad as it could have been and 2) there were people there.
It has made me wonder if the emergency services in my area have a detailed map of the trail system and this is something I will follow up.
Not much more to say. We all no the risks, particular riding by ourselves, everyone take as much care while having as much fun at the same time. know when to push it and when not to.
Have a great weekend.
At least I got my good stack over with early on this year so I should be good for another 6-7months yeah?