-What is SNELL?
It is a standard enacted by disinterested institution "Snell Memorial foundation" to act for the purpose is not the profit but people's safeties. The policy of offering the means that the ordinary user can easily judge the performance of the helmet has been original managed. The standard is reviewed by the principle "When the test condition is set, the severest condition is adopted" every five years. The Snel standard is a standard for the helmet that runs in a general public road. It is not a standard at all only for the racer.

- What is JIS?
Japan Industrial Standards (JIS) is a standard enacted based on Industrial Standardization Law. 'Safety cap for Japan Industrial Standards and getting on' that was JIS standard of the helmet was revised to 'New JIS standard' through the discussion of the investigation of Japan Industrial Standards Committee on March 20, 2000, and the test method changed into the method of following to the global standard. The standard to the safety performance is provided based on the opinion brought together by specialists who relate to the police, the doctor, the Ministry of International Trade and Industry, and each safety society, and the acceptable product is recognized by JIS mark.
You have to wear the JIS helmet in Japan.

- What is SNELL M and SA?
SNELL M is for standard of motorcycle.
SNELL SA is for standard of car race. This is needed the resistance to flame.
The SA standard can narrow view more than the helmet for motorcycle.

- How many years can the helmet be used?
We recommend exchanging in three years.
The purpose of the helmet is to be superannuated, and not to be able to maintain new time and the same performance by a change with the lapse of time like deterioration etc.
The performance deterioration of the helmet progresses chiefly by the following two factors.
AAA) Wear-out of interiors by use.
BBB) Deterioration of plastics component by sunray, especially by ultraviolet rays.
Therefore, after it manufactures it, the product that well, is hardly causes a change with the lapse of time in the warehouse as for keeping.
The influence by ultraviolet rays occurs FRP and, as a matter of fact, the performance decrease doesn't occur few for about three years. However, an interior made of the form of the urethane and an energy-absorbing liner made of the styrene foam might cause wear-out and deterioration because of use. The mind distribution recommends the use within three years too much in a usage commonsense this though it is not needed.
The helmet used for three years or more might not demonstrate an enough protection performance during the accident. Please note it enough.
Neither the helmet that receives a big impact nor the helmet that is damaged and remodeled might demonstrate an enough protection performance during the accident even if it is within in three years. Please note it enough.

- Which is good in Arai helmet and Shoei helmet?
Arai helmet have The Arai standard. It is more hard test than SNELL. Arai helmet develop the helmet for safty riding. You need a strong helmet from high speed riding, We will recommend Arai helmet.
Shoei helmet develop the helmet for the comfortable riding. These are air stream and air ventilation. You need comfortable riding ( easy riding ), We will recommend Shoei helmet.

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