Helmets
can save your life by reducing the impact of collision. Though it can't
be guaranteed that they can withstand all head injuries. It is because
cycle helmets are designed to withstand an impact equal to an average
cyclist traveling at 12mph.
Construction of Cycle Helmets
Cycle helmets are such designed that they could almost reduce the amount
of impact. A stiff layer of foam is laid inside these helmets which
absorbs most of the kinetic energy. In this process it gets damaged but
reduces the impact of collision thus saving cyclists life. Modern cycle
helmets carry a layer of expanded polystyrene (EPS). Actually it is the
plastic foam material, which is sacrificed in an accident as it absorbs
a major impact.
Bicycle helmets are made from expanded foam polystyrene. Polystyrene is
structurally stiff and it can be molded virtually into any shape. It is
such type of material which is easy to damage by crushing because it
contains a lot of small air spaces. The process of crushing absorbs
energy. These facts help in making ideal helmets for the construction of
bicycle helmets.
Proper Fit
The most important thing before buying a cycle helmet is its size. Your
helmet should fit perfectly in your head so that the amount of contact
area between the head and helmet should be maximum. It reduces the
impact of collision. To understand why size and fit is so important, you
need to understand how a helmet works. Here is the graphics of two
persons wearing helmet. Left one has got an unfit helmet and right one
is perfectly fit
Effect
of Fit and Unfit Helmet:
The helmet in left figure doesn't fit properly and it has less amount of
contact area than the one in the right figure which fits perfect and
covers more amount of contact area. The amount of contact area is
directly related to the absorption of energy during collision. Higher
the contact area more the energy absorbed and hence less is the impact
of collision which in turn increases the safety.
Try the helmets before buying:
Before buying a cycle helmet for you must try a lot before finalizing
it. Even the same size helmets of different manufacturers have different
fittings.
- It should be close fitting around all the head.
- The gaps can be filled by using soft foam pads supplied with the
helmet.
- Some manufactures use sizing rings in helmets to fit properly.
Cycling Equipment: Bicycle
|
Cycle Helmet
Cycling Accessories: Brake
Safety Light and Indicators |
Lockable Light and LED Set |
Cycle Computer |
Cycle Lights |
Knee Pads |
Elbow Pads |
Wrist Guards
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