Trek Quantum WaveCel Mountain Bike Helmet

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Trek Quantum WaveCel Mountain Bike Helmet

Model 5315812

The Quantum WaveCel is a lightweight mountain bike helmet with WaveCel safety tech that offers comfort, performance and value on singletrack trails or wherever your ride takes you.

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The Quantum WaveCel is a ride-anything mountain bike helmet with updated WaveCel technology that's lighter and cooler than ever. Strategic vents with recessed channelling help keep you cooler on your hottest rides, while a Headmaster III Fit System and a three-position visor make dialling the perfect fit a breeze.

This do-anything helmet features a well-ventilated design with recessed channelling to keep you cool on your warmest rides. Plus, finding the perfect fit is easy with Quantum's BOA Fit System and three-position adjustable visor.

Product details

Built with the latest WaveCel technology for a lighter and cooler helmet
New extended coverage provides greater protection than the prior generation
Front vents and channel system with 10% larger cells for more airflow and efficient cooling
The Headmaster III fit system provides simple and secure one-handed adjustability
Lay-flat camlock straps reduce twisting and binding to maximise comfort and fit
Three-position adjustable visor with dedicated sunglasses storage on helmet
Crash Replacement Guarantee provides a free replacement in the event of a crash within the first year of ownership

"WaveCel outperforms traditional foam cycling helmets."

"... the new Rally and Quantum helmets include deeper rear coverage, protecting the back of the head. Plus, Trek’s Crash Replacement Guarantee provides a free replacement within the first year of ownership if you’re involved in a crash."

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.

How to ride more safely

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 that 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!

WaveCel helmet safety technology

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.

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Crash Replacement Guarantee

We’ll provide you with a free replacement helmet if it’s involved in a crash within the first year of ownership. Just 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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Lighter and cooler

New-and-improved WaveCel technology features 10% larger cells that allow for more airflow while saving weight.

Deeper coverage

An extended back-of-helmet shell offers additional protection around the rear of the head.

Sunglasses storage

Grippy sunglasses storage channels make it easy to secure your sunnies mid-ride.

Three-position visor

Get the look and sun protection you want with an adjustable visor that easily sets into three positions.

Easy-to-adjust fit

A Headmaster III Fit System offers intuitive, one-handed fit adjustment for height and circumference so you can dial in your perfect fit.

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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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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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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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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Size	S	M	L	XL
Circumference	52-56 cm	55-59 cm	58-62 cm	61-64 cm
Fit system	Headmaster II	Headmaster II	Headmaster II	Headmaster II
Pad material	Moisture wicking pads	Moisture wicking pads	Moisture wicking pads	Moisture wicking pads
Buckle type	Standard buckle	Standard buckle	Standard buckle	Standard buckle
Includes	Crash Replacement Guarantee	Crash Replacement Guarantee	Crash Replacement Guarantee	Crash Replacement Guarantee
Weight	310g	330g	365g	385g

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. The prices shown are the manufacturer's suggested retail prices.

Weights are based off pre-production products at time of publication. Weights may vary in final production.

Sizing

size-table
Size	Circumference
S	52 - 56 cm 20" - 22"
M	55 - 59 cm 22" - 23"
L	58 - 62 cm 23" - 24"
XL	61 - 64 cm 24" - 25"

RRP

Manufacturer’s Suggested Retail Price. This is the price you’ll pay ordering directly from Trek. Total price including delivery and taxes may be seen in the basket.

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Trek Quantum WaveCel Mountain Bike Helmet