MOtorcycle Helmets...

'To the point' advice on what fits what, parts interchangeability and simple solutions to common problems...
This forum applies to any make.
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Prof
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MOtorcycle Helmets...

Post by Prof » Wed Mar 23, 2011 10:58 am

This info from motorcycle council website below. thanks to Rick for the link...

http://roadsafety.mccofnsw.org.au/a/74.html


The majority (85%) of rider casualties in NSW were wearing a helmet when they crashed. Three percent were not wearing a helmet and there is no information about the remaining 11% of casualties. Eight percent of those without helmets died, compared to 3% of those with helmets. This is consistent with other research which reports that unhelmeted riders have 2-3 times the fatality rate of helmeted riders and twice the rate of serious brain injury (Ouellet & Kasantikul, 2006).

In Australia there is a standard for motorcycle helmets, which has recently been updated. If the helmet complies with the Australian Standard (AS/NZS1698 ) and is in good condition, then it will provide as much protection as you can expect in a crash provided it fits and is fastened correctly.

This means that you don't have to buy the most expensive helmet in the shop. The essential factor is fit. Cost is not an indicator of better crash protection but may relate more to comfort, features, appearance and the quality of the finish.

There is also some evidence that riders wearing light coloured helmets have a lower crash risk in urban areas than riders with dark or black helmets (Wells et al, 2004).


Fit is critical
Choose a helmet that fits well. Many of the good motorcycle shops will have staff who will assist with the correct selection of size.

It should not move around on the head, nor place pressure on the forehead. Keep it on for 5 or 10 minutes before you buy, to be sure it is comfortable.

When the straps are securely fastened, ask someone to try to pull it off your head by grasping it at the base if your neck and pulling up and forward over your eyes. The nose contact is the limit for most helmets, the less movement the better. If it comes off, it is dangerous - chose another style.

Check your peripheral vision to make sure you are happy with the width of the eye-port. If you wear glasses, do they cause pressure points?

Pillions are often given poorly fitting helmets. If it moves around on the head, it will not provide adequate impact protection in a crash.
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Full face or open?
The basic decision of a full face versus open face helmet is a matter of personal choice. The debate revolves around the risk of skull base fractures caused by an impact to the chin region of a full face helmet. Reviews of crash risk rates suggest that while the overall risk of facial injury is greatly reduced by a full-faced helmet, the risk of skull base fractures may be increased ([EEVC, 1993] p 49).

Under the Australian Standard there is no difference in the level of protection provided by the two styles of helmet. The Standard requires a helmet to be tested above a line which runs around the head. This is the skull cap area from above the eye brow to just above the top of the ears, then dropping down around the back of the head. There are no tests below this line, so there are no tests of the chin sections on full or flip face helmets.

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Features
There are a variety of features in the design of helmets that may improve your comfort, convenience and safety. For example:

The fit and design of helmets and visors can either reduce or increase the noise produced by airflow around your head. This sort of noise can be distracting and fatiguing.

Fog shields and chin vents will help to prevent misting.

Consider the benefits of removable comfort padding, which you can wash or replace.
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Injection moulded plastic or composite fibre helmets?
Manufacturers use a variety of materials in helmets and they all provide equal levels of protection in impact testing in accordance with the Australian Standard.

Some people say that injection moulded plastic is more suited to low speed impacts and therefore city riding, whereas composite fibre helmets have different impact absorption properties that make them more suited to high speed crashes. Even if this were true in Europe, it is not the case in Australia due to the requirements of the Australian Standard for helmets.

What sort of crash are you planning to have anyway?

The material used in the outer shell has very little bearing on the helmet’s ability to absorb an impact. The impact is absorbed by the polystyrene inner liner, not the outer shell. If there was any truth to the difference in performance based on material, they would be banned in Australia.

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What if you drop your helmet?
There is also a lot of fear mongering about dropped helmets.

This is a problem because no one can ever guarantee that a helmet has not sustained any damage in a drop. How many 'little' drops affect the helmet' s ability to protect the wearer in the event of that one major impact?

Manufacturers and safety authorities are bound to err on the side of caution and to advise that the helmet should be replaced if it has sustained an impact. This is because they cannot take the risk of saying 'that it is alright to re-use it after the drop'.

Use common sense
If you drop your helmet or it fell off your bike (stationary), then there would be little chance of damaging the outer shell or the inner shell which actually absorbs the energy on impact. However, if you throw your helmet against a wall or down the road in a fit of rage, then you could damage the outer shell and affected the helmet’s ability to protect you (Gibson, 2004).
Chopit'nrideit... Prof

ol_750
Posts: 488
Joined: Tue Aug 05, 2008 8:37 pm
Location: Mallabula (Port Stephens ) NSW

Re: MOtorcycle Helmets...

Post by ol_750 » Wed Mar 23, 2011 9:48 pm

[quote="Andrew CA Admin"]This info from motorcycle council website below. thanks to Rick for the link...

http://roadsafety.mccofnsw.org.au/a/74.html
Fit is critical
Choose a helmet that fits well. Many of the good motorcycle shops will have staff who will assist with the correct selection of size.
It should not move around on the head, nor place pressure on the forehead. Keep it on for 5 or 10 minutes before you buy, to be sure it is comfortable.

When the straps are securely fastened, ask someone to try to pull it off your head by grasping it at the base if your neck and pulling up and forward over your eyes. The nose contact is the limit for most helmets, the less movement the better. If it comes off, it is dangerous - chose another style.
Check your peripheral vision to make sure you are happy with the width of the eye-port. If you wear glasses, do they cause pressure points?
Pillions are often given poorly fitting helmets. If it moves around on the head, it will not provide adequate impact protection in a crash.
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This is a very interesting point ...
as a motor trimmer I have modifyed seats for comfort & safety I also have done the same for helmets .....

At present I'm waiting on the MRC to give an opinion on this , as a few people have thrown their hands up in horror at this practice of makeing a helmet suit an individual for their safety & comfort when there is nothing on the shelf at a dozen motorcycle shops to suit them.
:shock: :shock: :shock:
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Prof
Founder, Choppers Australia
Posts: 5791
Joined: Sat Oct 22, 2005 3:54 pm
Location: Willunga, South Australia
Contact:

Post by Prof » Wed Mar 23, 2011 11:10 pm

I can't think of anything more sensible than to make the helmet fit like a glove. Mine has a beanie stitched to its interior and I have made some changes to padding for a nice fit... much less fatiguing after a couple of hundred miles into a head wind.
Chopit'nrideit... Prof

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