Selasa, 10 Juni 2014

how large should a bike helmet be?




dewgongoo


how much of my forehead and the back of my head should it cover?


Answer
To be effective as head protection, it should be worn no more than 1 finger-width above your eyebrows (wearing a helmet cocked to the back negates most of its protection). Forehead coverage is more important as most bicycle crashes are "faceplants" but back of the head protection is a bonus that more expensive helmets provide.

Helmet makers specify a range of sizes for their helmets that is based on head circumference. Once you determine the proper size, check the fit and comfort. Fit should be snug. Sizing pads are usually provided. Most importantly, try to wear the helmet to see if your head shape is compatible with their helmet shape so you avoid getting one with pressure hotspots.

Road motorcycle riders please respond. Do you wear a helmet? If not, what kind of bike do you ride?




ih8robots


If you dont wear a helmet please let me know why. Thanks


Answer
I ALWAYS wear a helmet, even when it is not required. I used to race motorcycles and survived enough crashes to appreciate their value.

For those who don't wear helmets, try this simple helmet effectiveness test

Find you self a large immovable object such as a large tree, brick wall, etc.

Stand about 30 paces away from this large immovable object.

Run towards the immovable object as fast as you can.

As you approach the large immovable object, place your hands to your side, lower your head, and continue running as fast as you can. As a variation, hit the large immovable object face first to evaluate the effects of a full face helmet.

As you hit the large immovable object, notice how this feels.

Most people can run about 15 MPH. This is slightly above idling in first gear on most bikes. With this demonstration, you just felt the effects of a motorcycle crash at 15 MPH. Imagine how this would feel at 40, 55, or 70 MPH.

Now, after you recover from your injuries, repeat the demonstration with an approved helmet.




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