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Helmets

Troy Lee Designs A1 Helmet
$105.00
Fit, Protection and Style After years of research and development, the Troy Lee Designs Team introduced the A1 mountain bike helmet in 2013. Here at TLD, styling, graphics, fit, function and safety are key in everything we create. This lightweight, fully encapsulated all-mountain helmet utilizes maximum coverage and dimension to keep you safe and protected in all riding conditions. Whether you're charging single track, riding dirt jumps or grinding out miles on the XC bike, the A1 helmet offers the premium fit, protection and style you want. SPECIFICATIONS - Reinforced polycarbonate shell in-molded with the EPS liner extends down the sides and back of the head for maximum protection and durability - 8 pressurized intake passages draw in cool air for maximum ventilation - 8 rear vacuum vortex outlets help exhaust and draw heat from the head - Triple position adjustable retention system allows customized fit for various eyewear, head shape and riding styles - Single piece, ultra plush, removable and washable comfort liner made of anti-microbial moisture-wicking material for a dry, comfortable feel - Full-spectrum adjustable moto inspired visor with anodized aluminum hardware
Troy Lee Designs A1 MIPS Youth Helmet
$100.00
A1 MIPS Classic Youth Helmet The trail beckons with the all-new A1 MIPS Classic Youth helmet from Troy Lee Designs. Ready to conquer any ride, the A1 leads the way with 16 large air vents and the innovative MIPS system to go along with its EPS liner for outstanding impact protection. With all-mountain performance and safety in a youth-specific shell size, the A1 goes where no youth mountain bike helmet has gone before. Specifications - Reinforced polycarbonate shell in-molded with the EPS liner extends down the sides and back of the head for maximum protection and durability - 8 pressurized intake passages draw in cool air for maximum ventilation - 8 rear vacuum vortex outlets help exhaust and draw heat from head - Triple position adjustable retention system allows customized fit for various eyewear, head shape and riding styles - Single piece, ultra plush, removable and washable comfort liner made of anti-microbial moisture wicking material for a dry, comfortable feel - Full spectrum adjustable moto-inspired visor with anodized aluminum hardware - Race-inspired styling
Troy Lee Designs A3 MIPS Helmet
$220.00
A3 Helmet w/MIPS So comfortable you won't ever want to take it off. The A3 mountain bike helmet is a new standard in premium mountain bike helmets with luxurious comfort, patent-pending innovations in safety, ventilation that will you keep you cool on the longest climbs with comfort and coverage to protect on the sketchiest of descents. Highest possible score (5-STAR) from Virginia Tech helmet safety lab so you can feel confident in all conditions. 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.
POC Axion SPIN
$149.99 - $150.00
Offering finely tuned trail protection, this trail and enduro mountain bike helmet gives exceptional coverage and features POC's innovative, patent-pending technology to minimize neck injury. Built to ride, all day. Features: - SPIN technology (Shearing Pad INside)—our patent-pending silicone-pad-technology system - Fully wrapped unibody shell to enhance durability and structural integrity - 360° size-adjustment system for the most precise and secure fit - Breakaway visor - Lightweight and well-ventilated Breakaway visor - The novel breakaway visor will snap off the helmet in an impact, thereby minimizing the impact forces that are transmitted to the neck. - The lightweight, well-ventilated Axion SPIN has extended protection zones around the temples and the back of the head for extra coverage where it is most needed.
POC Axion SPIN
$149.99 - $150.00
Lightweight, well ventilated, and with extended coverage around the temples and at the back of the head, the Axion SPIN provides finely tuned trail protection. Including a 360° size adjustment system that makes it easy to find a precise fit, the helmet features a fully wrapped unibody shell for improved structural integrity. The adjustable breakaway peak works to enhance safety in a crash, as it reduces forces transmitted to the neck. The peak can be adjusted so protection from sun, rain, and mud can be tailored to individual needs. Designed for trail and enduro riders, the Axion SPIN benefits from channels and vents that control airflow to keep a rider cool in all conditions. - Lightweight, highly ventilated trail and enduro helmet - Patent-pending breakaway peak to reduce neck injury - Fully wrapped unibody shell - Optimized PC shell - Optimized EPS liner - Extended shell around temples and back of head - Adjustable peak - 360° fit system - SPIN (Shearing Pad INside), our patent-pending silicone pad technology
POC Kortal
$199.99 - $200.00
With extended protection and exceptional ventilation, the Kortal gives next-level trail and enduro protection. Developed for complete protection, the helmet fits seamlessly with the Ora goggles and is designed so that the goggle strap does not cover any ventilation—helping ensure enduro riders stay cool on the climbs between race stages. The detachable helmet peak can also be adjusted and raise higher on the helmet so that goggles or sunglasses can be stored on the helmet below the peak. The rear ventilation holes are also shaped so that sunglasses can be securely stored in them Although developed for MTB, the helmet is also certified to the Dutch NTA 8776 electric bicycle helmet standard, currently the only standard for electric bikes. - Complete trail and enduro protection - E-bike ready - Patented breakaway peak enhances neck protection
POC Kortal Race MIPS
$249.99 - $250.00
The Kortal Race MIPS helmet provides extended protection zones, exceptional ventilation, and integrated technology to protect before, during, and after an accident, making it ideal for enduro. It features a new MIPS rotational impact protection system, as well as a RECCO Reflector and an integrated NFC Medical ID chip that stores a rider's vital info and can be accessed at the scene of an accident. The adjustable and detachable helmet peak raises high on the helmet so goggles can be stored. Rear ventilation can also be used to securely store sunglasses. No ventilation gets covered by a goggle strap, helping riders stay cool. The helmet is certified to the Dutch NTA 8776 electric bicycle helmet standard, the only such standard in the world. - Trail/Enduro helmet - Features new Mips rotational impact protection solution - RECCO Reflector - NFC Medical ID chip - Electric bicycle certified - Dutch NTA 8776 - Adjustable peak can be lifted high enough that goggles/sunglasses can be stored underneath the peak - Design ensures goggle strap does not cover ventilation - Patented breakaway peak enhances neck protection
POC Omne Air SPIN
$149.99 - $150.00
The helmet that inspires the will for more. Whether on the morning commute or out for a weekend ride, the Omne Air SPIN pushes you to go further. Optimal liner density and thicker core protection zones provide ideal all-round protection for everyday use, while ventilation channels and a low weight inspired by our award-winning road cycling helmets deliver optimum comfort and functionality on longer rides. By taking our whole-helmet approach to the creation of the Omne Air SPIN, the helmet delivers superior levels of comfort, fit, and performance. - Includes SPIN (Shearing Pad INside), our patent-pending silicone-pad-technology system - Optimized-density EPS liner offers ideal impact-force absorption - Slim profile for low weight and a clean aesthetic - Lightweight size-adjustment system makes it easy to find the perfect fit - Easily adjustable straps with anchors molded into the helmet liner improve both comfort and safety - 360° size-adjustment system makes it easy to find the perfect fit
POC Omne Air Spin
$150.00
The helmet that inspires the will for more. Whether on the morning commute or out for a weekend ride, the Omne Air SPIN pushes you to go further. Optimal liner density and thicker core protection zones provide ideal all-round protection for everyday use, while ventilation channels and a low weight inspired by our award-winning road cycling helmets the Octal and the Ventral deliver optimum comfort and functionality on longer rides. By taking our whole-helmet approach to the creation of the Omne Air SPIN, the helmet delivers superior levels of comfort, fit, and performance. SPIN (Shearing Pad INside), our patent-pending silicone pad technology, also features. - Includes SPIN (Shearing Pad INside), our patent-pending silicone pad technology system - Optimized-density EPS liner offers ideal impact force absorption - Slim profile for low weight and a clean aesthetic - Lightweight size adjustment system makes it easy to find the perfect fit - Easily adjustable straps with anchors molded into the helmet liner improve both comfort and safety - 360° size adjustment system makes it easy to find the perfect fit
POC Ventral Air SPIN
$249.99 - $250.00
The Ventral Air SPIN performance helmet is designed to deliver coolness in ways like never before. With precise ventilation ports and internal channels to control air intake and release at both low and high speeds, the helmet provides a supreme cooling effect over the whole head. Ideal for long rides in the mountains or hotter days in the saddle. Winner of the coveted Design and Innovation Award 2019, the Ventral Air SPIN works to enhance a rider's aerodynamic profile and minimize drag. Specific airflow zones enhance ventilation and cooling, while the aerodynamically optimized trailing edge reduces turbulence. The exceptionally lightweight Ventral Air SPIN has been developed according to our whole helmet approach. It features a fully wrapped unibody shell construction and an EPS liner, delivering an ideal balance between weight and safety. Practical features include a lightweight size-adjustment system that guarantees a personalized fit and an eye garage for easy and secure storage of eyewear when not in use. - Structurally optimized helmet with precise ventilation ports and internal channels to control the air intake and release at both high and low speeds. - Extreme cooling and ventilation due to ports and innovative internal airflow design. - Unique design optimized with CFD testing for aerodynamic performance and minimal air turbulence. - Features POC’s patent-pending silicone pad system, SPIN (Shearing Pad INside). - High-performance EPS liner with targeted and optimized density to provide the ideal balance of low weight and crash protection. - Fully wrapped unibody shell construction to increase safety and helmet integrity. - Lightweight size-adjustment system for a personalized fit. - Easily adjustable precision straps anchored to the helmet liner for extra comfort and safety. - Eye garage to keep your sunglasses securely in position when placed on the helmet.
Knog PWR Helmet Extension Mount
$24.95
The PWR helmet extension mount is designed for use with the PWR modular lights. Use it to attach the lighthead to your helmet so you can stash the battery in your backpack. - Compatible with the PWR Road, PWR Trail, and PWR Mountain light heads - Internal screw is made of nylon plastic and is designed to snap in case of accidents for rider helmet protection - Fits most vented helmets, common for road and trail cycling - Stretched cable length: 80cm - Weight: 100g
Knog PWR Helmet/GoPro Mount
$14.95
PWR Helmet/GoPro Mount - for holding charger and modular lights on top of helmet (Excludes PWR Mountain). Tri-prong system works with GoPro, so can be used to mount lights under Garmin and other mounts. - Compatibility: Works with PWR Charge and Modular lights (not PWR Mountain) - Mounting system: Designed to fit most vented helmets, common for road and trail cycling and is GoPro compatible - T Slot (For modular): Allows for quick release of the light when parking your bike - Weight: 20g
Giro Aether Spherical
$349.99 - $370.00
The Aether MIPS combines airy, open design with a revolution in rotational energy management to advance head protection for cyclists. Inside the Aether, a dual-density EPS foam liner helps to manage a wide range of impact energies, while also boasting deep internal channeling to provide cooling airflow. Giro's proprietary MIPS Spherical technology is integrated between the layers of EPS foam – instead of against the rider’s head – giving riders the benefits of MIPS without any obstruction to comfort or cooling power. Outside, a sleek 6-piece shell forms a stunning silhouette around the massive vents, which get added structural reinforcement via a shatter-resistant AURA reinforcing arch. The final touch is Giro's Roc Loc 5+ Air fit system, featuring 3-way fit tuning, that allows easy adjustment in seconds for the ultimate in comfort.
Giro Agilis MIPS
$89.99 - $90.00
When it's time to hit the road, the Agilis MIPS offers a sporty, sleek style with comfortable features you can count on, including 32 wind tunnel vents, Coolfit anti-microbial padding, and integrated MIPS technology. The fit on the Agilis MIPS is comfortable and secure thanks to our adjustable Roc Loc 5.5 MIPS system that combines fit and positioning adjustments while integrating with MIPS technology for an added measure of protection in the event of an angled impact. The outer Hardbody shell extends to the inside of the helmet, and is molded from a tough polycarbonate thats fused permanently to the EPS foam liner using our In-Mold process to enhance durability and ventilation without excess bulk. - 32 Wind tunnel vents with internal channeling - Full-wrap in-mold polycarbonate shell with EPS liner - Coolfit anti-microbial padding - Featherweight webbing with Slimline buckle - Roc Loc 5.5 MIPS fit system
Giro Agilis MIPS W
$89.99 - $90.00
When it's time to hit the road, the Women's Agilis MIPS offers a sporty, sleek style with comfortable features you can count on, including 32 wind tunnel vents, Coolfit anti-microbial padding, and integrated MIPS technology. The fit on the Women's Agilis MIPS is comfortable and secure thanks to our adjustable Roc Loc 5.5 MIPS system that combines fit and positioning adjustments while integrating with MIPS technology for an added measure of protection in the event of an angled impact. The outer Hardbody shell extends to the inside of the helmet, and is molded from a tough polycarbonate thats fused permanently to the EPS foam liner using our In-Mold process to enhance durability and ventilation without excess bulk. - 32 Wind tunnel vents with internal channeling - Full-wrap in-mold polycarbonate shell with EPS liner - Coolfit anti-microbial padding - Featherweight webbing with Slimline buckle - Roc Loc 5.5 MIPS fit system
Giro Artex MIPS
$129.99 - $130.00
The Artex MIPS is a blast of fresh air in helmet design, offering an exceptionally compact road-race-inspired design coupled with a removable visor and slightly deeper coverage for riding trails and grinding out long miles on mixed-surface roads. The fit is luxurious and secure, thanks to Giro's highly adjustable Roc Loc 5 Air MIPS system that allows you to customize fit/feel for great stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The outer shell is molded from a tough polycarbonate that’s fused permanently to the EPS foam liner using Giro's In-Mold construction process to enhance durability and ventilation without excess bulk.
Giro Bronte MIPS
$49.99 - $60.00
Giro created the Bronte MIPS for riders in search of the renowned Giro fit and in need of an extra-large size. Inspired by the sleek style and cooling ventilation of the Register helmet, the Bronte MIPS is at home on pavement or the trail. In-Mold construction is used to make it light without compromising durability, and the acclaimed, adjustable Roc Loc Sport MIPS system makes it easy to custom-tune the fit for comfort and stability. An integrated Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts, ensures that you get the latest in head protection technology.
Giro Cormick MIPS
$65.00
The Cormick MIPS offers a comfortable fit with deep coverage and open ventilation in a design that is suitable for nearly any ride. It’s built using In-Mold construction to reduce weight while enhancing durability to stand up to everyday use. The ease and comfort of Giro's acclaimed Roc Loc Sport MIPS fit system makes fitting as easy as turning a dial, and the fit system is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts. When you put it all together, you get the versatility you need to ride everything from forested fire-roads to swooping singletrack trails to the city streets.
Giro Fixture MIPS
$64.99 - $65.00
The Fixture MIPS brings confident mountain bike style and breezy ventilation together in a compact design that complements nearly any ride -- especially when there's dirt under tread. Some of Giro's best features, like In-Mold construction coupled with the ease and comfort of their acclaimed Roc Loc Sport fit system, offer the versatility you need to ride everything from fire-road adventures to swooping singletrack trails. The Roc Loc also is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts.
Giro Fixture MIPS XL
$65.00
Go big in the Fixture MIPS XL Helmet, made specifically for riders in need of an extra-large size who want breezy ventilation, the ease of the Roc Loc Sport fit system, and confident style. Inspired by the confident mountain style and breezy ventilation of our Fixture helmet, the Fixture MIPS XL is built around many of our best features, like In-Mold construction coupled with the ease and comfort of our acclaimed Roc Loc Sport fit system. Meanwhile, a seamlessly integrated Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts, ensures that you have the latest in head protection technology, too. This makes the Fixture MIPS XL one of the best performance value mountain bike helmets available.
Giro Manifest MIPS
$260.00
Among the Manifest's extraordinary features is Spherical Technology, which utilizes a ball-and-socket design powered by MIPS, the market-leading brain protection system that helps to reduce rotational forces. Spherical Technology allows the outer liner to rotate around the inner liner during a crash and also eliminates contact with a hard-plastic slip-plane. In addition to leading head protection, the Manifest offers wide-open airflow thanks to the AURA reinforcing arch, which bolsters structural integrity while allowing air to flow into the massive Wind Tunnel vents. You'll also get a comfortable, secure fit with the easy fit and positioning adjustments built in to the Roc Loc Trail Air fit system and plush, antimicrobial XT2 padding for exceptional sweat absorption. - Spherical Technology’s Ball-and-Socket design, powered by MIPS, helps redirect impact forces away from the brain by allowing the outer liner to rotate around the inner liner during a crash. It also eliminates contact with hard plastic or slip-planes against the skin. - Dual-density foam liners designed to address high- and low-speed impacts for more comprehensive energy management. - Structural integrity is bolstered by the shatter-resistant and translucent AURA reinforcing arch that runs throughout the helmet. - Integrated eyewear grippers help secure sunglasses. - All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's MIPS-equipped helmets is to reduce rotational forces. Giro believes that helmets equipped with this technology can reduce the amount of rotational force that may be transferred to rider's brain in certain impacts. - This visor features an adjustment mechanism that lets you move the visor up and down in indexed steps. These steps include three riding positions plus a high position for goggle storage above your brow. The design allows you to easily adjust your visor with one hand while riding. - Pure silver is the secret ingredient that gives XT2 the power to provide natural, permanent anti-odor protection to keep your helmet feeling and smelling fresh. - The integrated rubber goggle gripper on the back of the helmet helps to ensure that goggles stay in place even when you’re getting rowdy on the trail. - The Roc Loc Trail Air Fit System offers micro-adjustable fit adjustment, enhanced ventilation, and durable design that resists abrasion, scratches, and UV rays.
Giro Montara MIPS
$149.99 - $160.00
From long climbs to rowdy, technical descents, the Montara MIPS helmet inspires your ride no matter where the trail takes you. Its compact shape offers deep, confident coverage, and the Roc Loc Air fit system boosts ventilation while improving fit. In addition to this helmet’s already impressive cooling power, it’s outfitted with a hydrophilic, anti-microbial brow pad that can absorb up to ten times its weight in sweat. Giro designed the Montara MIPS to have full goggle integration, with strap grippers on the back of the helmet, and a P.O.V. Plus visor that allows you to lift the visor and place your goggles on the front of the helmet. Yet another great feature is the breakaway camera mount integration – a clever interface for your favorite light or camera.
Giro Montaro MIPS
$149.99 - $160.00
From long climbs to rowdy, technical descents, the Montaro MIPS helmet inspires your ride no matter where the trail takes you. Its compact shape offers deep, confident coverage, and the Roc Loc Air fit system boosts ventilation while improving fit. In addition to this helmet’s already impressive cooling power, it’s outfitted with hydrophilic, anti-microbial pads that can absorb up to ten-times their weight in sweat. Giro designed the Montaro MIPS to have full goggle integration, with strap grippers on the back of the helmet, and a P.O.V. Plus visor that allows you to lift the visor and place your goggles on the front of the helmet. Yet another great feature is the full camera mount integration—a clever break-away interface for your favorite light or camera.
Giro Quarter
$40.00 - $45.00
The Quarter is one of the lowest-profile helmets we've ever made, and it's also the lightest we've made with an ABS shell. The essentials are here—an EPS liner for impact management, a tough outer shell, riveted webbing anchors, and plush, sweat absorbent pads that are easy to swap for dialing in the fit. Another standout feature—the polyurethane coating—helps to protect the EPS liner from daily wear and tear. Plus it's available in a bunch of great colors and three Super Fit sizes.
Giro Radix MIPS Helmet
$94.99 - $95.00
The Radix MIPS helmet combines rugged style and durability to meet the demands of core trail riders, with the coverage, lightweight, and ventilation riders need to ride comfortably and confidently, all day. The Radix MIPS helmet is for the rugged adventurer who appreciates a perfect fit, the sun staying out of their eyes, and plenty of ventilation. The highly adjustable Roc Loc 5.5 MIPS system allows you to customize fit and feel for enhanced stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The P.O.V. Visor offers 15 degrees of adjustment, and the tough polycarbonate outer shell is fused permanently to the EPS foam liner using our in-mold construction process, to enhance durability and ventilation without excess bulk. - Construction: Full-wrap in-mold polycarbonate shell with EPS liner - Sport: Cycling - Number of vents: 25 - Ventilation type: Wind tunnel vents with internal channeling - Fit system: Roc Loc 5.5 MIPS
Giro Radix MIPS W Helmet
$94.99 - $95.00
The women's Radix MIPS helmet combines rugged style and durability to meet the demands of core trail riders, with the coverage, lightweight, and ventilation riders need to ride comfortably and confidently, all day. The Radix MIPS helmet is for the rugged adventurer who appreciates a perfect fit, the sun staying out of their eyes, and plenty of ventilation. The highly adjustable Roc Loc 5.5 MIPS system allows you to customize fit and feel for enhanced stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The P.O.V. Visor offers 15 degrees of adjustment, and the tough polycarbonate outer shell is fused permanently to the EPS foam liner using our in-mold construction process, to enhance durability and ventilation without excess bulk. - Construction: Full-wrap in-mold polycarbonate shell with EPS liner - Sport: Cycling - Number of vents: 25 - Ventilation type: Wind tunnel vents with internal channeling - Fit system: Roc Loc 5.5 MIPS
Giro Register MIPS
$47.99 - $60.00 $59.99 - $60.00 Up to 20% Off
The Register MIPS helmet combines sleek design and lightweight construction to match your style, on the road or trail. Made in a comfortable Universal Fit size with Giro's convenient Roc Loc Sport fit system, the Register MIPS adjusts with a simple turn of the dial so you can tune the fit in seconds. A range of colors lets you choose exactly how your on-bike style comes together. Register MIPS models also have an integrated Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts.
Giro Scamp
$34.99 - $40.00
The Scamp is packed with amazing features, including some of the same elements found in Giro's best adult helmets, all in a smaller package designed to fit your child. The all new Roc Loc Jr. fit system with pinch-guard buckle provides an easy way to fit your kid’s helmet quickly and securely. With a wide size range, your child can use this helmet as they grow from balance bikes to training wheels. The design is inspired by the adults’ Montaro/ Montara, and since the Scamp is available in a range of kid-friendly colors and designs, your child will be excited to wear it every time they ride.
Giro Scamp MIPS
$54.99 - $65.00
The Scamp MIPS is packed with amazing features, including some of the same elements found in Giro's best adult helmets, all in a smaller package designed to fit your child. The Roc Loc Jr. fit system with pinch-guard buckle provides an easy way to fit your kid’s helmet quickly and securely. The wide size range ensures children can use this helmet as they grow from balance bikes to training wheels. The design is inspired by the adult Montaro MIPS / Montara MIPS, and since the Scamp MIPS is available in a range of kid-friendly colors and designs, children will be excited to wear it every time they ride. Scamp MIPS models are available with the Multi-Directional Impact Protection System. MIPS can redirect energy and provide more protection in certain impacts.
Giro Selector
$164.99 $274.99 40% Off
In the battle against the clock, Giro's Selector is your latest and greatest weapon. The secret is in the tail which can be customized for the rider's anatomy, riding position, or even the course profile to optimize the aerodynamic advantage. Put on the Tall option for riders with a compact or hunched profile, or the Shallow tail if you have a flatter back profile. This speedy lid is also loaded with features like Giro's In-Mold polycarbonate shell for durability and low weight, their Roc Loc TT fit system for a custom fit, a vented windshield to protect your eyes and increase the aero advantage, and Giro's antimicrobial X-Static padding for awesome comfort. Add it all up and you've got an exceptionally high quality and well-fitted helmet built for going screaming fast. - Small/Medium = 51-57cm - Medium/Large = 55-61cm
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