The off-road world is a dirty, tough place. Chunks of rock and dirt mean business when launched by roosting tires, and even when it's muddy, hitting the ground is always hard. That's why Bell sweated the details on the MX-9, loading it with a tough polycarbonate shell, MIPS energy management system, an adjustable visor, Velocity Flow Ventilation, and a removable, washable, anti-microbial liner for when the time comes to hose down. The MX-9 MIPS packs all these features into one helmet, delivering exceptional value and pro caliber performance.
Velocity Flow Ventilation system for maximum cooling.
Fully adjustable Flying Bridge Visor with air intake vents.
Removable / washable anti-bacterial interior.
Integrated roost guard.
Padded chin strap with D-ring closure.
Industry-leading five-year warranty.
Certification: DOT, ECE.
Time Is Everything - For the past 60 years and counting, Bell engineers have researched the forces involved in crashes across a wide range of scenarios. Recent findings have concluded that brain injury received during an angular impact is much more severe, due to higher strain on the brain's tissue. MIPS addresses this strain by allowing the head to slide independent of the helmet for a few milliseconds. This critical moment of time helps to reduce the violence of the brain inside the skull, and can significantly reduce the risk of traumatic brain injury.
How It Works - MIPS uses a slip-plane system that moves inside the helmet, mimicking the brain's own protection system. This layer is designed to rotate inside the helmet with the intent to potentially slow or reduce the amount of energy transferred to or from the head. Science tells us that if Bell can reduce the strains associated with rotational acceleration, they might reduce the risk and severity of brain injury.
Why It's Important - When a head rotates quickly and comes to a sudden stop, the rotational acceleration can cause the brain tissue to experience high levels of strain. The stretching of the tissue that can be caused by these motions can result in various types of brain injury. Bell believes that helmets equipped with MIPS technology can provide an additional measure of protection in certain impacts.
The Minds Behind MIPS - In 1996, Swedish neurosurgeon Hans von Holst began to study helmet construction. He partnered with Peter Halldin, researcher at the Royal Institute of Technology, with a goal to contribute to the evolution of helmet technology. As a result, the company, MIPS AB was founded in 2001 by Hans, Peter and three other specialists in the biomechanical field from the Royal Institute of Technology (KTH) in Stockholm, Sweden. The company has extensive technological and medical expertise focused on head injuries. They also conduct studies involving injury prediction and the simulation of head and neck injuries using advanced data methods. MIPS AB has extensive and profound knowledge concerning head and neck injuries, a result of 20 years' experience in the area.
1. Measure your head size. To do this, pass a tape measure horizontally around your head at a height of about one inch above your eye brows. When done properly, you will have measured the largest part of your head.
2. Check your measurement with the helmet sizing chart and select the closest size. As the helmet may not always meet your head size exactly, and your head measurement may fall between two sizes, first try the smaller size.
WHEN YOU RECEIVE YOUR HELMET
1. Expand the helmet opening by pulling outwards on each chinstrap, and slide your head into the helmet. If you are unfamiliar with helmets you may be reluctant to pull the helmet down, as it may feel too tight. Even if the helmet is difficult to put on, please use the smallest helmet possible. The helmet should feel snug. If the helmet is not tight, it is too big for you. New helmets will break in and loosen slightly over time.
2. Once the helmet is on:
Check that the helmet inner lining fits snugly all around your head.
Check that the top pad presses on the top of your head.
Check that the cheek pads press up against your cheeks. When you open and close your mouth, you should drag your teeth along the inside of your cheeks.
Check to make sure that you cannot easily slide your finger into the helmet along the side of your temple.
Hold the helmet with one hand on each side. Without moving your head, try to move the helmet up and down, and side to side. You should feel the skin of your head and face being pulled as you try to move the helmet. If you can move the helmet around easily, it is too big. Try a smaller size. Please note that during this check, the chinstraps should be properly fastened.