ALLI Sports Racer X Online MX Sports GNCC Racing Racer Productions The Racing Paper Racer X Brand

Interview: Eddie Casillas from the Asterisk Mobile Medic Unit

by Racer X Virtual Trainer

Advertisement

Eddie talks about what's new in 2013 for Asterisk and touches on the new 6D helmet.

iCHOR’s Athletic Training Facility opens its doors to injured riders

6D Helmets Joins AMMC Concussion Program

Real World Data from 6D

The following came from Robert Reisinger, who works at 6D helmets. After talking to Eddie in the interview above, I was curious to see for myself the data behind the helmet. So I called and talked to Robert and he said he would put together a history of the 6D helmet and give some information on 4 documented crashes.

  1. Justin Bogle: Honda Test Track Practice
    1. JB did a classic over the bars after casing a triple on a rhythm section at the team Honda test track. It was high speed and he ended up face-planting into the berm embankment of the following turn, landing on his head with both hands out to catch fall. He broke the navicular bone in his right wrist and a very bad sprain in his left wrist. His head hit the track on the section just above his right eyebrow and temple area folding the visor down against the shell, making contact with the helmet shell.
    2. Crash damage post mortem:
      1. The impact site took a severe blow that left a notable mark on the helmet shell, packed the right visor screw full of compressed dirt, ripped off the right upper eyeport trim away from the shell that it is bonded to and compressed the inner EPS foam in the localized area on the inside of the helmet above his right eye. This impact appears to have induced a rotational action on the helmet that expanded the contact area on the shell in addition to the gradational downward forces.
      2. It is very hard to speculate the crash velocity in the two primary impact force components of the crash, gravity being usually the most important one, however, from our lab testing data and what we have seen it takes to start to compress EPS foam at this level, we can speculate that Justin’s velocity at impact was in the range of at least 4 to 5 m/s vertical velocity, or higher, to crush the EPS foam at this level in his helmet. The ODS system appears to have performed as designed, and dissipated both the rotational and linear impact forces in the initial phase of the impact and then after full compression of the ODS dampers, the EPS foam started to crush in the localized area.
      3. Rider condition and comments: Justin said he was unaware that his head hit the ground and had to ask observes.  He had no head or neck trauma or sensations of any brain injuries.
  2. Zach Bell: Milestone Park Practice
    1. ZB, just a week later after Bogle’s crash, Zach was in 3rd gear at a high speed (pinned), as reported by his mechanic and Zach, scrubbing the face of a jump, his foot caught the ground and tore him off the bike as he left the jump at Milestone MX park. His mechanic reported that it was a hard and ugly crash landing nearly on the top of his head on the right side above his temple at the point where the side of the head radiuses around to the top.  Zach got up from the crash looking for his bike, had a small scrape on the bridge of his nose.
    2. Crash damage post mortem:
      1. The impact site took a severe blow that left a notable mark on the helmet shell, packed the right visor screw full of compressed dirt, ripped off the right upper eyeport trim away from the shell that it is bonded to and compressed the inner EPS foam in a large localized area on the inside of the helmet above his right temple. This impact appears to have induced a rotational action on the helmet that expanded the contact area on the shell in addition to the gradational downward forces.
      2. The speculated crash velocity, based on our lab testing data as what we have seen it takes to compress EPS foam at this level, is that Zack’s velocity at impact was in the range of at least 5 to 6 m/s vertical velocity, or higher, to crush the EPS foam at this level in his helmet. The ODS system appears to have performed as designed, and dissipated both the rotational and linear impact forces in the initial phase of the impact and then after full compression of the OSD dampers, the EPS foam started to crush in the localized area. The inner EPS liner showed a large area of 3” in diameter of crushed EPS foam and associated cracks in the EPS liner as is consistent with lab testing.
      3. Rider condition and comments: Zach said he was up looking for his bike to get back to riding and found it bent up and not rideable. He reported no neck or head trauma or sensations of any brain injuries other than a scrape on his nose from making contact with either his goggle frame or the nose protector on the helmet.
  3. Eli Tomac: Oakland Supercross Race
    1. ET’s crash was in front of the nation at the Oakland Supercross race for all to see. ET entered a whoop section of the track and got off-line and out of balance at a high speed and went into a classic swap and over the bars crash. ET literally ‘lawn-darted” into the following whoop-section jump with his head, did a high speed flip pivoting on his head and landing on his hands and knees. This crash had a combination of impact forces that could have led to severe spine and brain injuries.
    2. Crash damage post mortem:
      1. The impact site, center top of forehead, took a severe blow that left notable marks  on the helmet shell in the center under the visor. The visor was broken off in the crash breaking on the center mount and right side mounts. Two large scrapes on the shell from the visor impacting onto the shell. At the impact site the inner EPS foam was crushed in a large localized area on the inside of the helmet at the top of the forehead area above his brows. This impact appears to have induced a rotational action of chin to chest folding down the visor on the helmet that expanded the contact area on the shell and farther up to the top center of the helmet.
      2. The speculated crash velocity, based on our lab testing data as what we have seen it takes to compress EPS foam at this level, is that the velocity at impact was in the range of at least 5 to 6 m/s vertical velocity, or higher, to crush the EPS foam at this level in his helmet. The ODS system appears to have performed as designed, and dissipated both the rotational and linear impact forces in the initial phase of the impact and then after full compression of the OSD dampers, the EPS foam started to crush in the localized area. The inner EPS liner showed a large area of the upper forehead of crushed EPS foam and associated cracks in the EPS liner as is consistent with lab testing.
      3. Rider condition and comments: Eli said that the impact felt totally different than what he had experienced in the past and was very impressed with the performance of our 6D helmet. He reported no neck or head trauma or sensations of any brain injuries but did suffer a bruise to his knee from hitting the bike.
  4. Jordan Smith: East Coast Track…? Racing
    1. The impact site not yet seen as helmet is not in our possession.
    2. Crash damage post mortem:
      1. The reported crash events are as follows: Jordan took a severe blow to the head after being thrown over the high-side of his bike while executing a high-speed left hand sweeper, his rear wheel got loose and slipped out and then hooked up and pitch him over the bike and into the ground and taking a big hit to his head.
      2. Rider condition and comments: Jordan knew he took a hard hit, he had no neck trauma but did report he had a mild headache and retired from riding that Saturday and Sunday. He said he felt great on Monday and put in a 30-mile bike ride and is back to racing.  He his father observed the crash and said it was a hard hit and should have knocked him out. Now Jordan and dad both say 6D helmets are all they will wear.

That's it for now, until next time, good luck with your training and remember, if you have a question, log on to the Virtual Trainer Expert Forum and have your question answered by a panel of experts. In addition, be sure and check out the Racer X Virtual Trainer archive section. Your complete one-stop information zone for motocross fitness. VT Signature

Share on:

Discussion

  1. Gravatar
    MXATC February 08, 2013 at 9:54 am

    Good info! Eddie does a great job for Asterisk! The sport is lucky to have him and Asterisk present for all the riders.

Leave a reply