What is a helmet? How many types are there? Which type should I buy?

Helmets today have many types and diverse designs. A good helmet will protect you and your family from unwanted accidents. Please refer to the article below with Tnhelearning.edu.vn to choose the best and most suitable hats!

What is a helmet?

A helmet is an item that aims to protect the head of the wearer when there is a collision when racing a bicycle, motorbike, car, … to ensure safety and not affect the brain and system. nerve .

Traditionally, helmets are not made of metal but of synthetic resins such as ABS and HDPE, but in recent decades, the material has been reinforced with carbon fiber for greater durability and lighter.

Today, it is mandatory to wear a helmet when driving two-wheeled vehicles in traffic to prevent traffic accidents and ensure human life.

5 basic helmet styles

Full-face

The full-face helmet covers the head with the back covering the entire skull and the front chin protection area. This type of helmet always has a gap in the belt that shields the eyes and nose and a plastic visor that goes up and down at will.

The biggest attraction of full-face helmets is the ability to protect , often used for off-road riders sometimes even removing the visor but widening the rim of the cap and chin.

According to many studies, full-face helmets provide the best protection for riders because up to 35% of accidents affect the chin area.

Off-road/motocross type

Features of off-road/motocross helmets are extended chin and cap rims , chin bar, half visor with protective goggles. The cap rim is responsible for blocking the sun shining into the driver’s eyes when jumping up / down.

Off-road helmets do not have a chin bar attached, riders often use a helmet similar to the current open-faced type with a mask to avoid dust or debris from splashing into the nose and mouth.

Modular or flip-up type

Modular or flip-up helmets are a combination of full-face and open-faced conventional street use, also known as “top” or “flip-up”, when the helmet is closed. closed they look a lot like full-face helmets.

The flip-up cap’s chin bar can be turned upside down (or removed) by means of a special lever that allows full face contact. Thanks to that, the rider can still eat, drink or talk normally without having to loosen the chin strap and remove the helmet.

The helmet is designed to stay in place during the ride, as the custom removable chin guard is useful when stationary.

However, the curved shape of the open chin bar and visor can increase air traction while riding, compared to the open face type, the chin guard of this helmet protrudes much further than the forehead area, easily pose a risk of neck injury to the driver in the event of an accident.

Open face or 3/4 . type

Open face or 3/4 helmets still cover the back of the skull but lack the chin bar and visor like full-face types.

Many are also equipped with an optional long visor that is used to avoid sunlight, providing protection for the posterior brain similar to a full-face model, but does not cover the face even in the event of a collision.

Dirt, even wind, hitting the face and eyes can cause discomfort or injury to riders, this is why when wearing an open face helmet riders also wear sunglasses or protective goggles to cover them. eye. In addition, many 3/4 hats also include a visor that extends the top to protect the eyes.

First half type

Half-face helmets, also known as “shortys”, have a front design similar to the open face type but shorten the back of the head.

Half helmets are very easy to slip and fall off the rider’s head in the event of an accident, some Motor Safety Foundation courses have banned the use of half helmets during riding exercises due to poor protection. than other types.

Which one should you buy?

Check the quality of the hat

When it comes to helmets, one thing is for sure that it must be complete with all the parts and quality to be able to protect the user’s head. So before buying this hat, you should carefully consider the parts to avoid buying fake and poor quality goods.

• Hat shell

+ Non-standard hats: The shell of the hat is made of thin, brittle plastic that breaks easily when hit hard, the fake hats are often designed in a fashion style (caps, wide-brimmed hats, felt hats, …).

+ Standard hat: The shell is made of good, thick, hard plastic, ABS plastic, PVC plastic, smooth surface, hard to break even when bumped, usually in traditional ways.

Normally, people often use ABS plastic to produce hats because of its good impact resistance, light weight, reasonable price, effective wear resistance, and another outstanding feature of this material is its toughness.

• Windshield

Helmet glasses are one of the parts whether or not depending on the preferences of each person. However, you should choose a hat with glasses because they provide great protection for your eyes and face.

+ Withstand the impact force according to the standard test of the National Technical Regulation. If the glass does break, the shards must not form sharp shards with an angle less than 60 degrees.

+ The light transmission coefficient must not be less than 85% according to the official standards.

• Styrofoam hat

Is a part that absorbs and withstands the force from the helmet shell to the inside. So it can protect the head of the user when an accident or collision occurs.

Create a comfortable feeling for the user with the feature of being able to insulate the environment. Despite the hot weather, keep the inside of the hat ventilated.

It is this inner foam layer that helps to fix the wearer’s head without deviating during movement, creating the most comfortable feeling.

Normally, people use EPS foam to make helmet foam, because EPS foam is different from ordinary foam when it is processed by compressing the foam at a high density , so the foam has very good rigidity.

• Hat strap (surely withstands heavy loads without slipping or breaking)

In helmets, the helmet strap is an indispensable part and it is very important in ensuring your safety, so it is made of synthetic nylon fibers, so it is durable and tough. withstand traction.

The hat strap is connected to the shell to help keep the hat strap firmly in place, helping to fix the hat on the head when moving. The hard plastic cap is very durable and strong and the distance of the hat can be adjusted so that the hat can be fixed in one position, preventing it from falling out while on the move.

Choose hat size and weight

Choosing the size and weight of the helmet is one of the most important steps , the protection of the helmet also comes from this step. If you choose a hat that does not fit your head, the blood circulation is not good, causing you to feel lack of concentration when driving.

Therefore, you need a hat that is comfortable enough for good blood circulation to your head, keeping your alertness and maximum concentration when driving.

After putting on, you keep the hat swinging left and right, front and back, if the hat is not easy to move, it is the right size, you will feel a little pressure in the cheeks, but no pain when wearing it. Okay.

Hopefully, the above sharing will help you choose a safe helmet when participating in traffic!