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Why is a helmet important and how do I get the best fit?

Why Wear A Helmet?

A helmet is the single most effective means of preventing and reducing the severity of head injuries (anywhere from 45-85% of cyclist's brain injuries can be prevented by wearing a helmet) so there is no good argument against wearing a helmet.

Overview of CPSC Safety Standards

Helmet standards help to govern the design and integrity of helmets so that riders get products that are safe and well designed for the type of riding they enjoy. When it comes to standards for cycling helmets sold in the U.S., there are 3 things to know:

  1. All cycling helmets sold in the U.S. must meet the government's CPSC standard.
  2. The CPSC (Consumer Products Safety Commission) standard was developed with input from a number of sources, and it is based on the most recent analysis of usage and injury data for cycling.
  3. There are two versions of the CPSC standard one for Adult and Youth helmets, and one for Infant helmets (children 1 year old and under).

The difference between the two standards is the amount of coverage in the rear of the helmet. You can determine which standard a helmet meets by looking at the box label and inside the helmet.

How To Get A Great Fit

A helmet must fit right and be worn properly in order to be effective. Please refer to common helmet sizes below:

Adult Sizes (fit 98% of the human population)

  • L = 59-63 cm
  • M = 55-59 cm
  • S = 51-55 cm

Adult Universal Fit Sizes (fits more than 90% of the human population)

  • U = 54-61cm
  • UW = 50-57cm
  • Youth Sizes (for ages 1+)
  • UY = 50-57cm
  • UC = 50-55 cm
  • INFANT = 47-52cm

What About Fit for Women?

Contrary to popular belief, there is no significant difference in skull shapes, location of skull features or the scale of ears, eyes and nose between men and women. However, there are many different sizes, styles and colors, so that every rider is sure to get a helmet that fits, looks and feels like it was made just for them.

-Gear Guide Courtesy of Giro

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