Helmets

Whether your finish line is on the race course or your front door, Trek Circuit WaveCel delivers the performance, comfort and tech to be your go-to helmet. It's equipped with features that any rider will appreciate, like WaveCel technology, a BOA® Fit System and Blendr mount systems.
WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Trek-exclusive technology disrupts the safety standards that the industry has accepted for over 30 years.

Features
- WaveCel advanced helmet technology
- The BOA® Fit System lets you easily secure and adjust your fit with one hand
- The Blendr magnetic mount system easily integrates a GoPro camera and Bontrager lights
- Made of 50% post-consumer recycled polystyrene
- FlatStrap semi-fixed strap dividers lay flush and move fore and aft for a perfect fit
- Soft, comfortable, moisture-wicking, and washable helmet pads
- Reflective elements on the back of the helmet offer enhanced visibility
- Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over

The Quantum WaveCel is a 5-star rated mountain bike helmet with updated WaveCel safety technology that's lighter and cooler than ever. This do-anything helmet features a well-ventilated design with recessed channeling to provide more airflow on your warmest rides. Plus, finding the perfect fit is easy with the Headmaster III Fit System and a three-position adjustable visor. Storage channels make it easy to store your sunnies mid-ride.

Product details:
- 5-star safety rating from Virginia Tech with lighter and cooler WaveCel technology
- 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
- Headmaster III fit system provides simple and secure one-handed adjustability
- Lay-flat camlock straps reduce twisting and binding to maximize 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
- Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over

Style, comfort, and protection for any ride

Solstice Mips is the ideal helmet for riders who want to dabble in all kinds of riding. It's super comfortable, has an easy to use fit system, and rolls with a simple, clean aesthetic that easily transitions from trail to pavement.

It features a Mips safety system — a helmet technology designed to help protect riders from rotational forces that occur during some cycling-related accidents.

Mips safety system helps provide additional protection from rotational forces in the event of certain cycling-related accidents

Refined styling with removable visor easily transitions from road to trail

Large vents and recessed channeling keep you cool on warm days

Trek Headmaster 3 fit system provides simple and secure adjustability with just one hand

Soft, comfortable helmet pads wick moisture and are easy to wash after a full day of fun

Covered by our Crash Replacement Guarantee, which provides a free helmet replacement if involved in a crash within first year of ownership

30-Day Unconditional Guarantee allows you to return your helmet if you're unsatisfied for any reason

Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and older

A head start to happier rides

Trek Solstice Mips is a super comfortable, stylish, and easy to adjust helmet that's perfectly at home on path and pavement alike. It's the ideal choice for kids who like to explore everywhere.

This helmet also features a Mips safety system, which is a helmet technology designed to help protect riders from rotational forces that occur during some cycling-related accidents.

Mips safety system

Fun, kid-friendly looks with a removable visor

Large vents and recessed channeling help kids keep a cool head

Trek Headmaster 3 fit system provides simple and secure adjustability with just one hand

Soft, comfortable helmet pads wick moisture and are easy to clean

Crash Replacement Guarantee provides free helmet replacement if involved in a crash within the first year of ownership

30-Day Unconditional Guarantee allows you to return your helmet if you're unsatisfied for any reason

Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over

A comfortable, versatile helmet with clean aesthetics and the added protection of Mips.

Style, comfort, and protection for any ride
The Trek Solstice Mips helmet is the perfect choice for riders who want to dabble in road and trail riding. It's super comfortable, has an easy to use fit system, and features a simple, clean aesthetic that easily transitions from path to pavement.

This helmet also features a Mips safety system, which is a helmet technology designed to help protect riders from rotational forces that occur during some cycling-related accidents. Solstice Mips has also earned a 5-STAR safety rating from Virginia Tech.

- Mips safety system helps provide additional protection from rotational forces in the event of certain cycling-related accidents
- Refined styling with removable visor easily transitions from road to trail
- Large vents and recessed channeling keep you cool on warm days
- Trek Headmaster 3 fit system provides simple and secure adjustability with just one hand
- Soft, comfortable helmet pads wick moisture and are easy to wash after a full day of fun

A fun, comfortable kids' helmet that looks great and features the added protection of Mips.

Details:

- Mips safety system
- Fun, kid-friendly looks with a removable visor
- Large vents and recessed channeling help kids keep a cool head
- Trek Headmaster 3 fit system provides simple and secure adjustability with just one hand
- Soft, comfortable helmet pads wick moisture and are easy to clean
- Crash Replacement Guarantee provides free helmet replacement if involved in a crash within the first year of ownership
- One Size: 50 - 55cm / 20" - 22"

A fun, comfortable kids' helmet that looks great and features the added protection of Mips.

A head start to happier rides
Trek Solstice Mips is a super comfortable, stylish, and easy to adjust helmet that's perfectly at home on path and pavement alike. It's the ideal choice for kids who like to explore everywhere.
This helmet also features a Mips safety system, which is a helmet technology designed to help protect riders from rotational forces that occur during some cycling-related accidents.

PRODUCT DETAILS:
- Mips safety system
- Fun, kid-friendly looks with a removable visor
- Large vents and recessed channeling help kids keep a cool head
- Trek Headmaster 3 fit system provides simple and secure adjustability with just one hand
- Soft, comfortable helmet pads wick moisture and are easy to clean
- Crash Replacement Guarantee provides free helmet replacement if involved in a crash within the first year of ownership
- 30-Day Unconditional Guarantee allows you to return your helmet if you're unsatisfied for any reason
- Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over

Whether your youngest rider is travelling in a baby seat, cargo bike, or trailer, Pnut is designed to provide premium comfort and top-rated protection with kid-specific features to maximize your time outdoors together, stress-free.

Thoughtfully designed to make gearing your youngest rider up as easy and painless as possible so you can spend more time on the fun part. This unisize helmet features an automatic EZ Fit system that will keep adjusting for a secure fit as they continue to grow, and a user-friendly cheek buckle to minimize tearful chin-pinching. Deeper temple coverage adds increased protection around the head's most sensitive area, while the built-in insect netting brings cool breezes in while keeping bugs and branches out. A flatter shape at the back of the helmet lets your child sit up in their seat and soak in the views more comfortably. This lightweight helmet is certified by the Consumer Products Safety Commission (CPSC) for children ages 1 and up.

Enjoy peace of mind while biking with your little one and leave the protection up to us. Better by design, KinetiCore is the world's first responsibly designed and fully Integrated Rotational Impact Protection technology that's built right into the helmet instead of added on after.

- WEIGHT: 240g
- MATERIAL: EPS Foam, Polycarbonate, Nylon
- FIT SYSTEM: EZ Fit
- VENTILATION: 12
- ROTATIONAL PROTECTION: Lazer KinetiCore
- CERTIFICATION: CPSC

Features:

Baby Seat Friendly
Features a flatter shape at the back to make sitting and enjoying the sights in trailers or baby seats more comfortable.

Less Pinches, Less Tears
Skip the chin-pinching drama with a child-friendly cheek buckle.

Easy Fit
No-fuss Automatic EZ Fit system makes finding a secure fit effortless. Just open it, put the helmet on, and it'll automatically adjust to provide the right fit for your child.

No More Bugs
A built-in insect net keeps bugs out while letting the breeze in, minimizing distractions and irritations.

Integrated Rotational Impact Protection
KinetiCore Controlled Crumple Zones absorb the force of both direct and rotational impacts in the event of a crash to re-direct energy away from your head, protecting you when you need it most.

Increased Coverage
Tip-overs happen. This helmet provides increased coverage around the temples, offering extra protection across the head's most sensitive area.

Unisize
One size fits all. The helmet shell and fit system is designed to accommodate a wide variety of head sizes and shapes.

Lightweight Design
Built 14% lighter than the previous Lazer Pnut MIPS helmet and with less plastics, its reduced carbon footprint design provides top-rated protection without unnecessary weight.

Helmet buckles work hard to keep your helmets secure and to maximize safety. No matter what happens, these original replacements will get them working like new. Key features - Original replacement buckles for your Bontrager helmet - Compatible with all Bontrager helmets

So comfortable you won't ever want to take it off.

Head of the class, A3 leaves nothing to chance by setting the modern standard in protection and fit as demanded by Troy Lee Designs' athletes. Equipped with Mips® protection, the co-molded EPP/EPS design features sixteen vents to optimize airflow making for a helmet that is so comfortable it practically disappears on your head.

This helmet is designed and intended exclusively for use by bicycling activities, including mountain biking and off-road cycling.

Specifications
- Co-molded EPP and EPS for low and high-speed Patent Pending impact energy management.
- B-Series MIPS Rotational Brain Protection system creates an optimal 360-degree fit that can maximize the safety features built into the A3.
- Advanced layering 3-piece shell
- 3-Way Magnajust visor easily accommodates goggles, whether they are stowed on the upswing or on your face.
- TLD Sweat Glide System – EVA wicking foam behind the comfort liner along the front brow directs sweat away from the eyes and optics. Includes 2 spares.
- 2-piece Ionic comfort liner for anti-microbial & sweat-wicking properties that is also quick to dry
- 16 vents optimally tuned with the channeling of the helmet to create the most intake and exhaust of any half-shell helmet we've produced
- Premium 3D Fidlock magnetic buckle system and composite smart shear screws are made to shear away during severe impact/direct hit to visor.
- Includes helmet carrying bag, (2) spare sweat glide strips, and a spare Ionic comfort liner and sticker kit
- Certification - CPSC 1203, CE EN 1078, AS NZ 2063:2008.

Head of the class, A3 leaves nothing to chance by setting the modern standard in protection and fit as demanded by TLD athletes. Equipped with MIPS protection, the co-molded EPP/EPS design features sixteen vents to optimize airflow making for a helmet that is so comfortable it practically disappears on your head.

- MIPS B-Series rotational impact brain protection
- Co-molded EPP and EPS construction
- Advanced layering 3-piece shell design
- 16 vents optimally tuned for airflow
- 3-Way Magnajust visor system
- 2-piece Ionic comfort liner with EVA wicking foam
- Premium 3D Fidlock magnetic buckle system
- Ultra-lightweight at 415g

The reigning king of full-face helmets, the D4 range expands with a Polyacrylite model packing the same safety and comfort features as the premium carbon and composite models into a price-conscious shell. Details make the D4 the most coveted full-face in mountain biking, including MIPS C2 brain protection, an air intake system for ventilation, and an unmatched anatomical fit.

D4 reigns king atop downhill podiums and BMX events across the globe. Available in carbon, composite and polyacrylite. Details are what makes the D4 the most coveted full-face in mountain biking. Prioritizing safety while balancing weight through premium construction and materials, D4 incorporates MIPS protection with an EPP chin bar and anatomical cheek pads with emergency release.

- MIPS C2 Rotational Impact Brain Protection System for ultimate head protection
- Lightweight design from 1000g to 1150g - you won't notice you're wearing it
- Maximum ventilation with 20 high-flow intake and exhaust ports to stay cool and composed
- Advanced Polyacrylite shell construction
- Front air intake system with high flow through polymer center and power grid side mesh
- Collarbone Suspension System
- Breakaway visor screws
- Anti-microbial padding
- Quick release contoured 3D cheek pads for anatomically optimized fit

Don't let its casual looks fool you. Flowline quietly intertwines Troy Lee Designs' dependable helmet protection and comfort features with an affordable price point. Beneath its clean, understated hood, Troy Lee Designs leans on years of helmet technology experience to crank up the performance, earning a Five-Star safety rating from Virginia Tech.

- MIPS B-Series Rotational Impact Brain Protection System for ultimate head protection
- Lightweight at 375g - you won't notice the weight while staying safe
- 14 vents for maximum airflow
- 3-Way adjustable screwless visor
- Full 360-degree fit retention system with 3-way rear height adjustment
- Extended coverage MTB trail helmet design
- Full wrap in-mold construction

MIPS equipped and eMTB-rated, Flowline SE sets the standard for safety within a modern, minimalist design, achieving a four-star safety rating from Virginia Tech. With 14 vents, an anti-microbial liner, and a Fidlock magnetic buckle system, Flowline SE is the workhorse of trail helmets.

- MIPS B-Series Rotational Impact Brain Protection System
- Four-star safety rating from Virginia Tech
- 14 vents for maximum airflow
- Anti-microbial Quick Dry Premium Liner
- Fidlock magnetic buckle system
- Lightweight at 375g
- 3-Way adjustable screwless visor
- Full 360-degree fit retention system with 3-way rear height adjustment
- Extended Coverage MTB Trail Helmet
- Full wrap in-mold construction
- Dual Density EPS for low and high-speed impacts
- eMTB-certified

Where enduro racing is anything but predictable, Stage is the lightest, most versatile full-face helmet in its class, allowing you to focus on nothing but the terrain ahead. Utilizing three shell sizes constructed of Polylite with fiber reinforcement, Stage combines EPP and EPS for both slow-speed and high-speed protection. The Polylite chinbar features massive openings for ventilation, key for all-day breathability so you can keep charging at the front of the pack.

- MIPS C2 Rotational Impact Brain Protection System for ultimate head protection
- Lightweight at only 690g - you won't even notice you're wearing a helmet
- 11 high flow intakes and 14 open core exhaust vents with deep max airflow internal channeling for maximum ventilation
- Three shell sizes with Polylite fiber reinforcement construction
- Dual Density EPS co-molded with EPP for slow-speed and high-speed protection
- EPP lined chinbar with massive openings for ventilation
- Smart sheer breakaway visor screws
- Exceeds bicycle certifications: CPSC 1203, CE EN1078, ASTM F1952, ASTM F2032, and AS/NZS 2063

Where enduro racing is anything but predictable, Stage is the lightest, most versatile full-face helmet in its class, allowing you to focus on nothing but the terrain ahead. Utilizing three shell sizes constructed of Polylite with fiber reinforcement, Stage combines EPP and EPS for both slow-speed and high-speed protection. The Polylite chinbar features massive openings for ventilation, key for all-day breathability so you can keep charging at the front of the pack.

- MIPS C2 Rotational Impact Brain Protection System for ultimate head protection
- Lightweight at only 690g so you won't even notice you're wearing a helmet
- 11 high flow intakes and 14 open core exhaust vents with deep max airflow internal channeling for maximum ventilation

Let's face it - we all sweat. Sweat stinks. Fresh pads will make your helmet smell, and fit, just like it did when it was new.

Features
- Original equipment replacement fit pads for your Trek Balista Mips helmets
- Helmet fit pads should be replaced once a year to maintain fit and hygiene

Fit systems work hard to keep your helmet secure and to maximize safety.
No matter what happens, these original replacements will get them working like new.

Features
- Original replacement BOA® Fit System for your Trek Ballista Mips helmet
- Only compatible with Trek Ballista Mips with the BOA® Fit System
- Size specific for the best possible fit

An aerodynamic road bike helmet that is undeniably fast, yet surprisingly light, cool, and comfortable.

Less wind. More win.
When speed is your top priority and every watt counts, reach for the helmet that'll cut through the wind to save you seconds. Ballista is Trek's fastest, most aerodynamically-advanced helmet.

Ballista is light, cool, comfortable, and engineered with a fully-integrated Mips Air safety system that's designed to help keep you safer.

Product details:
- Trek's fastest, most aerodynamic helmet will save big watts and shave crucial seconds
- An excellent ventilation system makes this aero helmet surprisingly cool and comfortable
- The Mips Air system is light, cool, and designed to help reduce rotational forces
- The single-lace BOA® fit system is fully adjustable to provide a custom, 360° fit
- Rubberized sunglasses docking port provides secure and easy-to-use storage
- Beveled front edge improves field of view while riding on the hoods and in the drops
- 5-STAR Virginia Tech safety rating
- Complies with U.S. CPSC safety standards for bicycle helmets for persons age 1 and over

An aerodynamic road bike helmet that is undeniably fast, yet surprisingly light, cool, and comfortable. Less wind. More win. When speed is your top priority and every watt counts, reach for the helmet that'll cut through the wind to save you seconds. Ballista is Trek's fastest, most aerodynamically-advanced helmet. Ballista is light, cool, comfortable, and engineered with a fully-integrated Mips Air safety system that's designed to help keep you safer. PRODUCT DETAILS - Trek's fastest, most aerodynamic helmet will save big watts and shave crucial seconds - An excellent ventilation system makes this aero helmet surprisingly cool and comfortable - The Mips Air system is light, cool, and designed to help reduce rotational forces - The single-lace BOA® fit system is fully adjustable to provide a custom, 360° fit - Rubberized sunglasses docking port provides secure and easy-to-use storage - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership - 30-Day Unconditional Guarantee allows you to return your helmet if you're unsatisfied for any reason - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over

Fit systems work hard to keep your helmet secure and to maximize safety.
No matter what happens, these original replacements will get them working like new.

Features
- Original replacement fit systems for your Trek helmet
- Compatible with all Trek and Bontrager helmets with Headmaster fit systems

No matter what happens, these original replacements will get them working like new.

Features
- Compatible with Trek Blaze WaveCel helmet
- Integrates seamlessly into the helmet
- Size-specific fit with helmet

Helmet visors work hard to get the sun out of your eyes and keep you looking good.

Features
- Works perfectly with your Trek Blaze WaveCel helmet
- Original equipment replacement visor

The Blaze WaveCel Mountain Bike Helmet is like two helmets in one, with removable 3/4 coverage that lets you choose additional ear protection or the cooler, lighter look and feel of a more traditional half-shell. Either way you get a full set of features and 5-star safety tech with lighter and cooler WaveCel.

Dial in the perfect fit with a BOA® Fit System, lay-flat camlock strap dividers, and Fidlock buckle. Additional features include a goggle optimized three-position magnetic breakaway visor with secure sunglass storage and a removeable Blendr mount for a Trek light or GoPro.

Product details:
- 5-star safety rating from Virginia Tech with lighter and cooler WaveCel technology
- Removable 3/4 side coverage and extra deep rear coverage
- Front vents and channel system with 10% larger cells for more airflow and efficient cooling
- Excellent fit and comfort via BOA® fit system, lay-flat camlock strap, and Fidlock strap buckle
- Goggle optimized three-position visor features magnetic breakaway and integrated sunglass storage
- Removable Blendr magnetic mount system easily integrates a GoPro camera or Trek lights
- Crash Replacement Guarantee provides a free replacement in the event of a crash within the first year of ownership
- Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over

Attach an Ion headlight to illuminate the trail, or attach an action camera with help from this Blendr helmet mount.
Compatible with all Ion headlights and many action cameras.

Features
- Quickly mount a headlight or action camera
- Compatible with all Blaze WaveCel Mountain Bike helmets
- Compatible with most Trek Rally WaveCel Mountain Bike helmets
- Tested with accelerometer for intended breakaway point if involved in a crash
- For exact Rally helmet compatibility, visit the product page for your helmet model and review the related parts under the "Service" tab

An e-bike approved commuter helmet with great fit and feel and the advanced protection of WaveCel technology. Confidence-inspiring protection for any commute Trek Charge WaveCel Commuter is a fashion-forward helmet that earns top marks in style and safety. It’s perfect for commutes, e-bike rides, and everyday adventures, and it's built with the most advanced helmet safety tech available so you don’t have to choose between fashion and function. WaveCel is a revolutionary helmet technology that's exclusive to Trek and Bontrager helmets. It's designed to be more effective than traditional foam helmets in protecting against certain cycling-related injuries. PRODUCT DETAILS - WaveCel is a leading helmet tech designed to absorb linear impacts and rotational energy - BOA® fit system lets you easily secure and adjust helmet fit with just one hand - Fidlock magnetic buckle fastens effortlessly for a quick, secure fit - Rear Blendr mount system easily integrates Bontrager light accessories - Soft, comfortable, moisture-wicking, and washable helmet pads - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership - Helmet is NTA 8776 certified and approved for S-EPAC use - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over

Fit systems work hard to keep your helmet secure and to maximize safety.
No matter what happens, these original replacements will get them working like new.

Features
- Original replacement fit systems for your Trek helmet
- Compatible with Trek Child and Youth helmets with Headmaster fit systems

A helmet with big kid features for smaller riders. YOUR LITTLE ONE NEEDS A HELMET, TOO Designed to help protect the young cyclist in your life, the Little Dipper toddler helmet features a built-in visor and easy-to-use magnetic buckles with a kid-friendly fit. It's perfect for little ones riding in a trailer, a child carrier, or all on their own. PRODUCT DETAILS - In-molded EPS shell with full coverage designed for protection and durability - Fidlock magnetic buckle fastens effortlessly for a quick, kid-friendly fit - Soft helmet pads are easy to remove and clean - Dialed fit system provides a secure and comfortable fit - Adjustable helmet straps provide a clean look with easy fit management - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership - Helmet meets ASTM standards — tested with a smaller-mass headform that's more realistic to younger riders - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 1 and over

Let's face it - we all sweat. Sweat stinks. Fresh pads will make your helmet smell, and fit, just like it did when it was new.

Features
- Original equipment replacement fit pads for your Trek Little Dipper helmets
- Helmet fit pads should be replaced once a year to maintain fit and hygiene

A helmet with big kid features for smaller riders. TODDLERS NEED HELMETS, TOO Designed to help protect the young cyclist in your life, the Little Dipper toddler helmet features a built-in visor and easy-to-use magnetic buckles with a kid-friendly fit. It's perfect for little ones riding in a trailer, a child carrier, or all on their own. PRODUCT DETAILS - In-molded EPS shell with full coverage designed for protection and durability - Fidlock magnetic buckle fastens effortlessly for a quick, kid-friendly fit - Soft, removable helmet pads that are easy to clean - Dialed fit system provides a secure and comfortable fit - Adjustable helmet straps provide a clean look with easy fit management - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership - Helmet meets ASTM standards—their tests use a smaller mass headform that's more realistic to younger riders - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 1 and over Size Circumference - Toddler: 46 - 50 cm/18" - 20"