Koroyd Helmet Safety Initiative


True innovation, New technologies, new materials. It brings us further day after day our
bikes are more technologically advanced and aerodynamic than ever before. We’ve never pushed harder or gone
faster but what about your first line of defense? Is your helmet today protecting
any better than 20 years ago? One accident can have life-changing
consequences. Helmets reduce the probability and
severity of skull fractures and traumatic brain injuries. The probability of suffering a skull
fracture correlates with the maximum deceleration of the head during an
impact. In the European and American safety standards the maximum allowed
values are 250 and 300 g. At 250g you have a 40% risk of suffering a
skull fracture and at 300g the risk almost doubles to 79%. Some impacts last longer than others and to evaluate the total energy transfer to
your brain during an impact a metric called the head injury
criterion or HIC was developed. Research from the car industry has shown that HIC correlates with the risk of suffering severe traumatic brain injuries. Shockingly the maximum allowed HIC value for
European motorcycle helmets is 2400, allowing an almost 97%
risk of suffering a severe traumatic brain injury at the reference impact velocity and a 77% risk that the injury is fatal… So how much deceleration can your
skull or brain really take? I have spent over 40 years analyzing automotive
accident data and developing safety systems. I developed these risk curves together with
Dr. Mertz to evaluate the likelihood of someone suffering severe head injuries
like a skull fracture or traumatic brain injury. The curves have been used by the US
Department of Transportation to set acceptance criteria for head injuries in
several crash standards. They are also used in car safety programs around the
world and also have been revalidated recently. The HIC limit of 2400 in the
motorcycle helmet is way too high. If a pedestrian is hit by a car we allow a maximum HIC of 1000. If the same person falls of his bike HIC 2400 is allowed. It just doesn’t make sense! And worst of all it leads to too many
severe head injuries and fatalities. Technologies have progressed and
innovation materials allow us to manage these risks far better than in the past. Improving helmet safety is about how well you how can manage the impact energy. Koroyd is an advance core material from
the aerospace industry which manages the energy in a radically different way to
existing energy absorbers. Current materials have been empirically derived from those used in the packaging industry and the helmet safety standards reflect this. Koroyd tackled helmet design with a completely different approach. We have engineered the most efficient
material for energy absorption which offers significantly lower risks of injuries Our core is constructed through a unique
extrusion and thermowelding process, creating a fully breathable and
lightweight structure During an impact the Koroyd tubes
homogenously collapse and as the material is crumbling the energy is being attenuated
minimizing the energy transfer to the rider. The principles are exactly the
same as the crash absorber in a car. Inside cycle and motorcycle helmets we have already been able to reduce the
maximum deceleration of the reference impact velocity to less than 183g, which correlates with the less than 5% risk of suffering
a skull fracture. At the same time the maximum HIC was reduced to less than 1666, correlating with a less than 5% risk of suffering a fatal traumatic brain injury without increasing the helmet liner thickness. To compare the performance we installed the Koroyd core inside a high-end EPS-based motorcycle
helmet. In comparison with having an EPS liner the Koroyd material reduces the
maximum deceleration for this impact by 32% and the HIC value by
58%. And while 32% reduction is already sizable the correlated risk of suffering a skull fracture or a fatal traumatic brain
injury reduces dramatically. For this impact down to less than 1%. It’s time to innovate and built these
next-generation helmets. Helmets that comply with voluntary lower limits so we can reduce injuries severities and save
many lives. At Koroyd we have the technology to help
manufacturers to achieve this. Hopefully one day the risk of suffering severe
head injuries in various sports activities can be as low as when driving a car. Until that time this helmet safety
initiative with these voluntary lower limits for deceleration and HIC is a major step in the right
direction that would improve rider safety very significantly. It’s been over 20 years that many of
these standards have been put in place. It’s time to re-evaluate the helmet
standard and put it at a level where a technology can allow. Reduction in Peak G Reduction in HIC Reduction in risk of injuries this is not complicated.