how to choose safe Motorcycle Helmet

It’s clear-helmets save lives. According to the National Highway Traffic Safety Administration, motorcycle riders who do not wear helmets are 40 percent more likely to incur fatal head injuries than riders who do. From 1984 through 1990, helmets saved the lives of more than 4,740 motorcyclists. To help protect the lives of motorcycle riders, the US Department of Transportation (DOT) requires that all motorcycle helmets sold in the United States meet Federal Motor Vehicle Safety Standard (FMVSS) 218. Each year, DOT conducts compliance testing of a variety of motorcycle helmets to determine whether helmets being sold in the U.S. meet the federal safety standard. Because helmets add such a critical margin of safety for motorcycle riders, many states now have laws requiring the use of helmets that meet FMVSS 218 requirements. Increasingly though, motorcycle riders are violating these state laws by wearing cheap and unsafe helmets that do not meet FMVSS 218. Most of these helmets are sold as novelty items by unscrupulous merchants to circumvent the FMVSS 218 requirements. In some cases, people purchase these helmets in the mistaken belief that they offer protection. However, many people who wear these novelty helmets know that they are unsafe--but wear them anyway. The following information will tell you how to spot these unsafe novelty helmets and how to distinguish them from helmets that meet the federal safety standard.
 
Here’s What to Check For:

DOT Sticker
Helmets that meet FMVSS 218 must have a sticker on the outside back of the helmet with the letters DOT, placed there certifying that the helmet meets or exceeds FMVSS 218. It is important to note that some sellers of novelty helmets provide DOT stickers separately for motorcyclists to place on non-complying helmets. In this case, the DOT sticker is invalid and does not certify compliance.
The symbol "DOT" constitutes the manufacturer’s certification that the helmet conforms to the applicable Federal Motor Vehicle Safety Standards. This symbol shall appear on the outer surface, in a color that contrasts with the background, in letters at least 3/8 inch high, centered laterally approximately 1 1/4 inches from the bottom edge of the posterior portion of the helmet.
An Interpretation Letter from the National Highway Traffic Safety Administration states the requirement that helmets be permanently labeled prohibits the use of labels that can be removed by hand, without tools or chemicals. Therefore, a sticker that falls off the helmet would not appear to be in compliance within the meaning of Standard No. 218.

Snell Sticker
In addition to the DOT sticker, a label located inside the helmet showing that a helmet meets the standards of a private organization like Snell is a good indicator that the helmet meets the federal safety standard. To date, we have never seen a novelty helmet that has a phony DOT sticker plus a phony Snell sticker.

Manufacturer’s Labeling
Manufacturers are required by FMVSS 218 to place a label on or inside the helmet stating the manufacturer’s name, model, size, month and year of manufacture, construction materials, and owner information. A cheap helmet that does not meet the federal safety standard usually does not have such a label.

Thick Inner Liner
Helmets meeting the minimum federal safety standard have an inner liner--usually about one inch thick--of firm polystyrene foam. Sometimes the inner liner will not be visible, but you should still be able to feel its thickness. Unsafe helmets normally contain only soft foam padding or a bare plastic shell with no foam at all.

Sturdy Chin Strap and Rivets
Helmets meeting the DOT safety standard have sturdy chin straps with solid rivets.

Weight of Helmet
Depending on design, unsafe helmets weigh only one pound or less--helmets meeting FMVSS218 weigh about three pounds. Become familiar with the weight of helmets that comply with the federal safety standard. They feel more substantial.

Design/Style of Helmet
The DOT safety standard does not allow anything to extend further than two tenths of an inch from the surface of a helmet. For example, while visor fasteners are allowed, a spike or other protruding decoration indicates an unsafe helmet.
A design such as the German Army style or skullcap style may be a clue to an unsafe helmet. Unsafe helmets are noticeably smaller in diameter and thinner than one meeting the DOT standard. However, some German Army style helmets may meet federal requirements. You’ll need to check for weight, thickness, sturdy chin straps, as well as the "DOT" and manufacturer’s labels to make sure the helmet meets the federal safety standard.
Try to become familiar with brand names and designs of helmets that comply with DOT requirements. For example, a full-face design is a good indicator of a safe helmet. We have never seen a full-face design novelty helmet.

Summary
Remember, a DOT sticker on the back of the helmet and proper inside labeling do not necessarily prove that a helmet meets all DOT requirements. Many helmets have phony DOT stickers and a limited few also have manufacturer’s labeling. But the design and weight of a helmet, thickness of the inner liner, and quality of the chin strap and rivets are extra clues to help distinguish safe helmets from non-complying ones.