The bike helmet is designed to protect the head of a shock and attenuated impacts to the skull of a cyclist in falls. Even if the helmet is apparently not damaged, it can be fragile and cracked in places that are not visible. Ride with a helmet that has already received a shock can be very dangerous because no longer play a protective role.

- Visible deterioration

If you see with the naked eye deterioration of the helmet (small cracks, which straps snapped, things that come off ) it is very important to change the helmet. Only a good helmet can protect you effectively.

- After a few years

Depending on your practice and the number of outings, it is recommended to change the helmet if it gets too old (from 5 years if the state looks correct). A helmet may be too old elements and materials that age less well than others, especially if your headphones are stored in a cold or wet.

- Change in subject

If you want to address a cycling discipline different from what you are doing now, you will need a different helmet that will fit best in your new practice. (Example: transition from BMX biking, passage of the road bike to mountain biking).

- Other possible reasons

Many other reasons exist: simply the desire to change, the desire to have a helmet lighter, more design, more airy and so on.

Selection of helmets (Size of bicycle buy helmets online and bike):

The helmet sizes are listed as "53-56cm" which is the minimum and maximum circumference of the head. To find your size, simply measure the head circumference, outline his head at the front, where it is wide, with a flexible meter.