Bontrager Quantum Mips Bike Helmet

Overview

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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"The most impressive mountain bike helmet we've tested" [Issue 6]

"Of all the bike helmets I've worn over the years, the Bontrager Quantum Mips with BOA is the most comfortable I've worn"

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

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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!

Features

Created through years of research, Mips is designed to accentuate the brain’s own ability to protect itself and can provide better protection from angled impacts.

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.

See the guide

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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Specs

Size	S	M	L	XL
Circumference	51-57cm	54-60cm	58-63cm	60-66cm
Fit system	BOA®	BOA®	BOA®	BOA®
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, visor plugs	Crash Replacement Guarantee, visor plugs	Crash Replacement Guarantee, visor plugs	Crash Replacement Guarantee, visor plugs
Weight	335g	365g	410g	425g

Sizing

Service

Reviews

We’ll make this a great experience

Awesome free shipping options

30-day Unconditional Guarantee

Gear of the year (2019)

"The most comfortable I've worn"

More options

All your favorites, all in one place

How to ride safer

How to clean your bike helmet

Multi-directional Impact Protection System

Helmet buyers guide

30-Day Unconditional Guarantee

Crash Replacement Guarantee

Helmet Fit and Sizing

We’ll make this a great experience

Awesome free shipping options

30-day Unconditional Guarantee

Gear of the year (2019)

"The most comfortable I've worn"

More options

All your favorites, all in one place

How to ride safer

How to clean your bike helmet

Product features

Multi-directional Impact Protection System

Helmet buyers guide

30-Day Unconditional Guarantee

Crash Replacement Guarantee

Helmet Fit and Sizing