KBC VR-1 Crash Damage (pics) - POSSIBLE FLAW IN DESIGN! - Page 2 - Sportbikes.net
 

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Old 01-28-2005, 09:18 AM   #16 (permalink)
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Great, that is the helmet I have. Good thing someone stole my bike so I can't use it anymore.
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Old 01-28-2005, 09:23 AM   #17 (permalink)
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Quote:
Originally Posted by f4igrad
Ironically, I was just doing some research on some new lids because this post has me concerned, and I come across a post from another member on here:

"My post is just from my experience....Ive tried out KBC, will never own another again. I high sided on the track and the medics were able to take the helmet off my head in two halfs, the damn thing split down the center, I recieved a level 2 concusion. I have also used AGV, this is my choice as of now. If tested these helmets, and have walked away with no injuries thus far...yet. Aria is a great helmet, Got to wear my buddies, and also suomy. Just make sure is DOT and SNELL approved."

.
i thought that was posted by " chsnprodigy " on here.....

btw, i'll stick w/ ARAI..no question about them.
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Old 01-28-2005, 09:30 AM   #18 (permalink)
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A few more details please:
1. The abrasion doesn't look "mild to moderate impact" (though it may just be my reading of the pics.) Is there a defect in the shell material? What is the condition of your other gear.
2. Decelleration is what prevents concussion. Is this the defect you believe you had?
3. The pictures tell us nothing about the type of injury you had. Was there some sort of failure inside the helmet?
4. The liner is what mitigates concussive injury. Do you see any problem with the liner?
5. It looks as though you bounced on the left side and slid on your back. Does this make sense?
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Old 01-28-2005, 09:57 AM   #19 (permalink)
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Quote:
Originally Posted by RACER X

btw, i'll stick w/ ARAI..no question about them.
I witnessed a guy die instantly going about 30mph in a top of the line Arai.

Point is that no helmet is anywhere near 100% effective and every crashis 100% unique. Judging a helmet by "fit and finish" is OK but comparing crashes and injuries is not a valid point.

(This not aimed at Racer X, I just quoted his post)
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Old 01-28-2005, 10:03 AM   #20 (permalink)
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true, but when you see a trend of helmets that split open down the middle on impact, then you start to worry a bit about the overall design. I am sure that people have died at 30 mph in Arais, Shoeis, KBCs, HJCs, etc. However, there seems to be a lot of first-hand knowledge of KBCs failing upon impact. The helmet should never have cracks in it or split open, it should deform and absorb the impact. You might still get a concussion or die, but at least the helmet tried to do its job and didn't just split into 2 pieces.
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Old 01-28-2005, 10:10 AM   #21 (permalink)
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Quote:
Originally Posted by Powder
I witnessed a guy die instantly going about 30mph in a top of the line Arai.

Point is that no helmet is anywhere near 100% effective and every crashis 100% unique. Judging a helmet by "fit and finish" is OK but comparing crashes and injuries is not a valid point.

(This not aimed at Racer X, I just quoted his post)
agreed........what happened?
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Old 01-28-2005, 10:23 AM   #22 (permalink)
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Quote:
Originally Posted by f4igrad
true, but when you see a trend of helmets that split open down the middle on impact, then you start to worry a bit about the overall design. I am sure that people have died at 30 mph in Arais, Shoeis, KBCs, HJCs, etc. However, there seems to be a lot of first-hand knowledge of KBCs failing upon impact. The helmet should never have cracks in it or split open, it should deform and absorb the impact. You might still get a concussion or die, but at least the helmet tried to do its job and didn't just split into 2 pieces.
I would think all helmets will either crack or split due to the materials they are made out of. The inside styrofoam stuff is what deforms and absorbs the impact.
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Old 01-28-2005, 10:31 AM   #23 (permalink)
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Quote:
Originally Posted by RACER X
agreed........what happened?
Short story: Ended up falling off the bike backwards and hit at a 90* angle on the pavement. Died instantly.
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Old 01-28-2005, 10:37 AM   #24 (permalink)
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Quote:
Originally Posted by Powder
Short story: Ended up falling off the bike backwards and hit at a 90* angle on the pavement. Died instantly.
like vertical to the ground?

as for "Splitting" i think it depends on how the helmet is made....1 "solid round" piece vs 2 halves.........
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Old 01-28-2005, 10:40 AM   #25 (permalink)
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Heres a Q for everyone. Was the helmet fitted correctly? I could understand that if a helmet is too loose, it would have a greater chance of splitting upon impact than a snug helmet. I currently wear a HJC CL 14. I am planning on buying an RF1000 this summer.
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Old 01-28-2005, 10:44 AM   #26 (permalink)
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Luckily the only impact my KBC Wolf has taken was a low speed dump that barely touched the helmet to the street.
But this spring I'm getting a new lid anyway and retiring the Wolf for use with the (rare) occasional pasenger.

I know that price isn't a determining factor really, but I've never felt comfortable with any sub-$200 helmet. Often times you just do get what you pay for.
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Old 01-28-2005, 10:44 AM   #27 (permalink)
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This is the exact helmet that I got my level 2 concusion with, I highsided on the track. The medics took the helmet off in two halfes...I will never trust a KBC again.
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Old 01-28-2005, 10:56 AM   #28 (permalink)
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Quote:
Originally Posted by RACER X
like vertical to the ground?
Yes....probably the worst way to hit since there is no "glancing" off the ground and all the forces are transmitted directly to the helmet. The impact made his shield pop off.
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Old 01-28-2005, 11:00 AM   #29 (permalink)
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My last crash I stopped rolling by banging my head on a car bumper. My KBC VR-1 Euro seemed to do it's job...Touched the road a couple of times and got mild abrasion. My head didn't hit the bumper too hard but hard enough to where I thought to myself "Damn, that shoulda hurt".
Also with these helmets, you notice how the back flares to a point. It's not a constant contour like a circle. I'm just wondering if you landed on that point, if more forces are applied than if you landed on a curved surface. All of the force would be directed beneath that point instead of being distributed along the curved surface.
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Old 01-28-2005, 11:50 AM   #30 (permalink)
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Quote:
Originally Posted by Powder
I would think all helmets will either crack or split due to the materials they are made out of. The inside styrofoam stuff is what deforms and absorbs the impact.
Powder, the cracks I were referring to were in my post above where the guy received his brand new KBC helmet and it had cracks all over it. He said the box was fine so it wouldn't have come from shipping. I am just concerned about the quality control.

I am certainly not debating that cheap helmets do a great job, because I think they do. I also think that you could die with an $800 Arai on your head from a low speed get off. What I am talking about is the probability of the helmet failing, and from what I have read I believe that the KBC has a higher probability of failure than many other brands (including cheapos like HJC). I am sure that many have crashed in KBCs and been fine...but it sounds like the KBCs are a bit more prone to failure. I just am not willing to take that chance while others might.
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