Trek Tyro Youth Bike Helmet FAQ

Are all Bontrager helmets transitioning to the Trek brand?

Yes, all Bontrager helmets will be rebranded to Trek. The Tyro is one of many helmets to undergo this transition, which will take place over the course of the next couple of years.

What type of bike helmet technology does Trek Tyro feature? 

Trek Tyro bike helmet features an expanded polystyrene ("EPS") liner.  EPS is a crushable, energy-absorbing foam used in many bike helmets; this material is designed to help absorb linear energy when the helmet is impacted. 

Are the helmet pads replaceable?

Yes, the helmet pads are replaceable. Replacement pads can be ordered on Trekbikes.com.

Are the helmet pads washable?

The helmet pads can be washed by carefully rinsing by hand in lukewarm water and air drying at room temperature.

What type of fit system does Tyro use?

The Tyro features a dialed fit system that allows the rider to easily adjust the fit of the helmet with one hand.

How does the adjustment dial work?

The Trek Tyro features a dialed fit system. Turn the dial clockwise to tighten, and counterclockwise to loosen. It's that simple!

What type of strap divider does Tyro use?

The Trek Tyro uses an adjustable divider that is easily adjusted for the perfect fit.

What type of buckle does Tyro use?

The Trek Tyro helmet uses a FidLock buckle to ensure a secure fit.

Is the helmet visor replaceable?

Yes, the helmet visor is replaceable. Replacement parts can be ordered on Trekbikes.com.

What colors are available?

Trek Tyro is available in 6 color options: Royal and Deep Dark Blue, Radioactive Orange, Radioactive Yellow and Power Surge, Aloha Green and Ultra Violet, and Blush and Pink Frosting.

What sizes are available?

Trek Tyro youth and child helmets are available in two different circumferences, 48-52 cm (child) and 50-55 cm (youth). To find your appropriate size, simply measure the circumference of your head using a cloth tape measure or a piece of string and a ruler. Be sure to measure horizontally across your brow and over your ears, then use the bike helmet size chart below to find the proper helmet size based on your measurement.

Which helmet size will fit me best?

Ride with a helmet that fits your style and your head. Visit our "Bike sizing and fit guides" to view our sizing guide and find your perfect fit.

Learn more

How much does the helmet weigh?

The new Trek Tyro child helmet weighs 280g for the CPSC US version and the youth size weighs 305g.

What is the helmet made of?

The Trek Tyro helmet is made of numerous materials, consisting of a protective foam layer made of EPS and a polycarbonate shell. The remaining materials consist of various types of plastic.

When should I replace my helmet?

Replace an old helmet or a helmet with damage. The helmet is designed to absorb shock by partial destruction of the shell and liner. This damage may not be visible. Therefore, if subjected to a severe blow, the helmet should be destroyed and replaced even if it appears undamaged.The helmet has a limited lifespan in use and should be replaced when it shows obvious signs of wear.

Helmet parts lose strength over time, so even if the helmet has not been impacted or damaged, replace it after three years from date of purchase.

What safety standards does the helmet comply with?

Trek Tyro complies with U.S. CPSC safety standards for bicycle helmets, the EU CE safety standards for bicycle helmets, the AS/NZS safety standards for Australia and New Zealand, and ASTM standards.

What is the Crash Replacement Guarantee?

Our Crash Replacement Guarantee provides anyone with a free replacement helmet if they have been involved in a crash within the first year of purchase. Simply request proof of purchase, accident details, and a return address for the replacement helmet.