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  • Bontrager Rally WaveCel Mountain Bike Helmet
  • Bontrager Rally WaveCel Mountain Bike Helmet
Overview
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Rally WaveCel Product Overview

Rally WaveCel is a high-style, high-value off-road helmet with trail-specific features and WaveCel, a leading technology in the protection against cycling-related head injuries.

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"It's in a class by itself"

"You can't put a price on safety, but this is a pretty good start"

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"Excellent style and features"

"Styling, retention system, and safety features score big at this price"

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"A top-shelf cycling helmet"

"I found the Rally to be quite airy and cool"

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"A good bang for your buck to protect your head"

"A very comfortable fit in a clean package"

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All your favorites, all in one place

Get all your favorite apparel from over 80 of the world's best cycling brands delivered right to your doorstep or local Trek retailer when you shop our curated online collection. If you're not 100% satisfied, you can return your purchase within 30 days for a full refund.

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Go By Bike

Planet Earth is our home and our responsibility —we must do our part to preserve it. Learn how you can join the #GoByBike movement and help make a difference in the future of our planet and all who call it home.

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How to ride safer

Want to do more than wear a helmet? Check out this guide to riding safer.

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How to clean your bike helmet

To ensure your bike helmet looks and performs its best, it's important to properly clean and care for it. Check out our simple guide to learn how to maintain your bike helmet. It's easy to do and takes little time!

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Features

Rally WaveCel mountain bike helmet

An off-road helmet with WaveCel technology that balances comfort and performance for trail riders who value safety.

What is WaveCel?

WaveCel is a revolutionary helmet technology designed to be more effective than traditional foam helmets in protecting against certain cycling-related accidents. Its collapsible cellular structure lines the inside of your helmet and is designed to work like a crumple zone to absorb the force of an impact before it reaches your head. Click below to learn more.

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A TIME Magazine Invention of the Year

Our breakthrough WaveCel helmet technology was included in TIME Magazine's list of 100 Best Inventions for making the world better, smarter, and even a bit more fun. Watch the video to learn more about the science behind this revolutionary helmet technology. From TIME

©2020 TIME USA LLC. All rights reserved. Used under license

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Virginia Tech validation

All WaveCel helmets received the highest rating from Virginia Tech's third-party testing facility. This unbiased assessment proved Bontrager's WaveCel helmets to be among the highest level of protection available to cyclists with a 5-STAR rating.

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BOA® fit system

Easily secure and adjust the helmet fit with just one hand.

Drop-in coverage

Extended, back-of-helmet shell offers additional rear protection.

LockDown strap dividers

Easily adjust straps to fit perfectly with adjustable, lightweight strap dividers.

Soft helmet pads

Super comfortable internal pads wick moisture on hot days and hard efforts and are easy to wash after a full day of fun.

Helmet buyers guide

Not sure which helmet is right for you? Check out our helmet buyer's guide to learn everything you need to know about bike helmets.

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Crash Replacement Guarantee

With our Crash Replacement Guarantee, we will provide you with a free replacement helmet if it is involved in a crash within the first year of ownership. Simply contact us or your local retailer with the crashed helmet, original sales receipt, details of the incident, and a return address for your replacement.

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30-Day Unconditional Guarantee

If for any reason you're not satisfied with a Bontrager or Trek aftermarket purchase, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.

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Our helmets build the future

$1 from the sale of every Bontrager helmet in North America supports PeopleForBikes, which provides guidance, a rating system, a leadership conference, and professional support for transforming cities throughout the United States in the ongoing effort of becoming a bicycle friendly nation.

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Helmet Fit and Sizing

For your helmet to do its job, it's important that it's sized properly and fits well. Reference our sizing guide at the link below to find your ideal size and see how Bontrager helmets are intended to fit.

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Specs
Sizing
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