this is why you should wear your helmet..
Motorcycle Helmet Sizing, Shapes and Comfort
Choosing a motorcycle helmet would be easy if it was simply matter of picking out a size and a color. Unfortunately, different brands of helmets or even different models within the same brand can have a completely different fit and feel – and cost has nothing to do with it, because some of the least inexpensive helmets will fit and feel better than helmets costing twice as much or more.
Apparently, many motorcyclists don’t realize that in addition to size, motorcycle helmets come in a variety of different internal shapes. Shape is one of the most important factors to understand when purchasing a motorcycle helmet. Helmets are expensive, and if you can only own one, it should be the highest quality, best fitting helmet you can find within your budget constraints (we'll discuss head shapes in more detail below).
In fact, it's almost impossible to find the "perfect" fit, or even an acceptable fit, without trying on at least several different helmets and wearing each one for an extended period of time. Even a helmet that feels great in the shop may feel like a medieval torture device after only a few minutes on a motorcycle. Obviously, the problem of finding a helmet with the correct fit will be compounded when purchasing from an online vendor, because the sale is usually completed without actually seeing the helmet and without trying it on.
Safety is the primary reason for wearing a motorcycle helmet, but one of the most important factors to consider when purchasing a new helmet is comfort. Any protection that a helmet can offer is of no value if it is too uncomfortable to wear.
We have a wacky theory for why people like to ride motorcycles, and it goes like this: The act of riding is a form of meditation, because the concentration that's required to safely ride a motorcycle tends to focus the mind in a way that eliminates other mental distractions that might interfere with the mission. This creates a single-mindedness that, in effect, displaces the continuous stream of thoughts that normally flow through our consciousness.
Thoughts about what to eat, who to meet, and worries about the common stresses of everyday life, such as pressures from work and home, disappear from our minds during the ride, because the concentration that's necessary to focus on the ride pushes those thoughts far into the background. The result is that the mind becomes refreshed after a ride just like it would after a session of formal meditation or a relaxing vacation.
Just like some people get "hooked" on meditation, motorcyclists get hooked on riding because of the mental relief that it brings. I wouldn't be surprised if someone discovers that endorphins or something are released during the act of riding. I'm sure you've noticed that you can't "zone out" on a motorcycle like you can when driving a car. Riding safe means being focused and alert at all times – which is one of the reasons why it's so important to stop and rest at frequent intervals when riding a motorcycle on a long trip.
What does this have to do with motorcycle helmets? The high levels of concentration and focus that are necessary to pilot a motorcycle mean that any distraction, no matter how subtle, can actually become a safety hazard. To borrow from Keith Code in his book "A Twist of the Wrist", you start out with, say, $10.00 worth of concentration. You can't have any more, but you certainly can have a lot less.
Start taking away a few bucks here and a few bucks there, and before you know it, your subconscious stress levels are building and you're focusing more on the distractions than on the ride. Some distractions may be barely noticeable at first, such as an uncomfortable glove, a leather motorcycle jacket arm that has a slight binding, or a wet boot. But enough distractions can cause a 5 dollar loss of concentration just when you need all 10 bucks worth. Since lack of concentration and focus is one of the causes of motorcycle accidents, this becomes a serious issue.
This is confirmed by the famous Hurt study of the causes of motorcycle accidents. The study found that approximately one-fourth of the motorcycle accidents were single vehicle accidents involving the motorcycle colliding with the roadway or some fixed object in the environment. Of these accidents, the majority were caused by rider error, typically a "slideout" (their words) and fall due to over-braking or running wide on a curve due to excess speed or under-cornering. How many of these accidents are caused due to a loss of concentration on the job at hand?
We're not claiming that a comfortable motorcycle helmet can prevent motorcycle accidents. But the goal should certainly be to create an environment that minimizes unnecessary distractions by trying to gain as comfort as possible during the ride.
Comfort has several factors. For example, the material that makes up the motorcycle helmet's liner should feel comfortable against the skin. The internal padding of the helmet should act as a comfortable cushion between the head and the helmet internals, and the liner shape should perfectly match your head shape. The perfect helmet would be so comfortable that the rider would forget that it’s there.
The internal helmet shell structure on poorly designed helmets can have protrusions or shapes that press through the padding and into a sensitive area on your head and cause pain, rawness and headaches, so there should be no pressure points from these areas. The chin strap should be comfortable and have smooth padding that doesn't rub the neck. The visor should have an opening that doesn't block the vision and which can be easily adjusted for air flow. And the helmet shouldn't be too hot or too drafty.
In our experience, it can take at least up to an hour of actual riding to determine whether a motorcycle helmet will have an acceptable level of comfort. Therefore, we recommend that you try before you buy. Forget about being self-conscious, and try wearing the helmet at a local motorcycle shop for at least 30 to 45 minutes to minimally determine if it will be comfortable.
Many helmets will feel comfortable (or not) for the first minute or so, but be aware of any "hot spots" or pressure points that develop over time. Make sure there's enough front-to-back room so that the chin isn’t pressing up against the inside of the chin bar. Try clenching your teeth -- the helmet should provide enough room for you to keep your mouth closed without undue discomfort. And buckle it up, to see how the attachment system works and to make sure the chin strap is acceptable.
Note that a comfortable fit in the motorcycle shop still can't duplicate the riding experience, because of factors like noise and wind pressure that can greatly affect helmet fit and comfort, but it's better than buying a helmet site unseen.