Aerodynamic performance, safety and ventilation do not need to come at the expense of each other. By using our whole-helmet approach to development, we have been able to deliver unparalleled levels of aerodynamic performance, safety and ventilation without compromise in the Ventral Mips. Taking inspiration from the Venturi effect, the helmet's airflow zones allow the helmet to pass through the air with greater efficiency, making it faster. Residual air traveling around the helmet is managed by the 22° aero trailing edge, the perfect angle for minimizing turbulence, further improving aerodynamic performance. By leading air through rather than around the helmet, its wake is minimized, while its ventilation and cooling properties are enhanced. Other features of our whole-helmet approach include a fully wrapped unibody shell with an EPS liner for the ideal balance between weight and protection. Now including Mips for enhanced rotational impact protection, the helmet also features a lightweight adjustment system spanning the whole head for a comfortable and secure fit.MIPS IntegraThe latest technology from brain protection specialists MIPS enhances rotational impact protection.EPS linerThe EPS liner is optimized to provide crash protection at a low weight.Unibody PC ShellThe fully wrapped unibody PC shell improves the structural stability and enhances helmet integrity.Adjustable 360° FitA lightweight 360° adjustment system makes it easy to find a secure, comfortable fit.Airflow ventilationThe innovative airflow design pushes air through the helmet for exceptional ventilation.Venturi-inspired airflowThe helmet's airflow zones are inspired by the Venturi effect to reduce drag.CFD TestedUnique aero design optimized through extensive CFD testing to minimize turbulence.22° Trailing EdgeResidual air travelling around the helmet is controlled by a 22° aero trailing edge: the perfect angle for minimizing turbulence.Eye garageSpecific high-friction pads to the front of the helmet mean it is easy to securely store sunglasses while riding.
Exposure Diablo SYNC MK4 Front LightThe Diablo SYNC MK4 Front Light from Exposure is a powerful helmet light manufactured for off-road and night time riding. It features an anodised aluminium casing that offers superb protection in all weather conditions at a low weight.Dependable All-Weather High-Power PerformanceBy using patented circuitry of technology, the Diablo SYNC is immune to overheating and cutting out due to high temperatures. It comes with a number of light modes, including flashing and constant. It also offers various runtimes and outputs that can be easily selected or controlled by using an app on your Bluetooth enabled phone/device.Bright and Reliable Off-Road Trail LightThe triple LED's create a wide beam of light, combined with fast mode changing TAP technology. The Diablo SYNC's increased 2000 lumen output will enable you to pin most trails and see all incoming objects in-front of the wheel. With a lightweight CNC engineered aluminium body, the Diablo gives you licence to raise hell on the mountain.The Diablo SYNC gives you the widespread, high-powered beam of a Diablo with SYNC Bluetooth connectivity for wireless mode changing and customisable runtimes via a smart phone and an updated app. This smartphone connectivity enables you to get what you need out of the lights performance and keeps you riding long after the sun goes down. SYNC Output ControlSYNC allows you to control the light with a remote switch and to make custom programs in the Exposure SYNC App, additionally both helmet and handlebar lights can be simultaneously controlled with a single remote via Bluetooth connectivity. App is available in both iOS and Android platforms.Optimised Mode Selector (OMS)Various programs in the lights can easily be selected to offer a choice of run times and modes so you can find the right one for your ride, be it an all-night adventure or an intense blast.Fuel GaugeUsing a traffic light system remaining runtime is easily monitored at a glance so you're not caught out. The colour feedback is also used for mode selection, before defaulting back to the runtime.Intelligent Thermal Management (ITM)Patented circuitry within the light will reduce power to the LEDs, if they go beyond the optimum temperature, keeping the light as efficiently as possible to maximise output and battery capacity.Features: Max Output: 2000 Min Burn Time (hrs): 0.75 Max Burn Time (hrs): 24 Handlebar Mounted: Yes Stem Mounted: Optional (sold separately) Helmet Mounted: Yes SYNC Bluetooth Remote Switch: Yes Smart Port Technology: Yes Cable Free Design: Optional (sold separately) Intelligent Thermal Management: Yes Optimum Mode Selector: Yes Fuel Gauge: Yes LEDs: 3 XPL2(W3) Internal Li-Ion Battery: Yes Support Cell: 3.4A Charger: 1.5A Charge Time (hrs): 4 Smart Charger: Yes USB Charging: Yes Weight (g): 120 Length (mm): 115 Head (mm): 41 Back (mm): 33 Rating: IP65 Battery Capacity (mAh): 3,500 x 2Buy Exposure Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.
Redefine Your Comfort Zone. To make a DH-certified full face with the ventilation and fit of a half shell our development team took a fully integrated approach when creating the Gambit. Every component was engineered utilizing a comprehensive approach resulting in truly breakthrough performance where the Gambit delivers more than the sum of its parts. Combines a lightweight carbon fiber shell structurally specific polycarbonate backing and five optimized pieces of targeted density foam (patent pending) for reduced weight optimized fit and increased ventilation. ASTM DH (1952) certified. Tune a more precise personalized fit thanks to Gambit’s adjustable Integrated Fit System that accommodates variations in head shape and occipital base. Occipital base adjustment personalizes fit for comfort and allows you to tune helmet angle to ensure that your helmet and eyewear stay perfectly synched. 4-position adjustable cheek pads provide fit refinement for any head shape. Integrated fixed visor with a breakaway feature provides a wide field of view while protecting against trail debris. Average weight: 640 grams (medium). Increased airflow and improved ventilation from the SBC Integrated Fit System does away with the excessive padding of a traditional full-face friction fit. MIPS SL with our exclusive perforated backing integrates MIPS technology within the helmet padding and reduces moisture retention while increasing breathability. Computational Fluid Dynamic design integrates the maximum volume of internal channeling for optimal airflow through the helmet. 4D brow cooling provides a gap between the helmet and forehead drawing airflow into internal air channels at every speed. This helmet is ANGi ready with a fit system mount designed for easy integration with our ANGi crash sensor.
Exposure Zenith MK2 Front LightThe Exposure Zenith MK2 is a lightweight and reliable off-road front light that is ideal for enduro trail riding. It offers 2100 lumens of illumination and is perfect for night rides in the forest and evening singletrack sessions.2100 Lumens Off-Road Trail Riding Mountain Bike LightThe Zenith is the answer to years of rider demands. 2100 lumens, long-reaching, wider beam, for an hour and a half or combined with rapid mode change technology, TAP, that you can use the 2100 lumens when cascading down a steep, fast descent or tackling a technical trail and then TAP to lower the lumens and increase the run time.TAP Power and Mode ControlQuickly switch between modes on helmet lights by tapping either the body of the light or the helmet without needing to locate the function button for fast control to match the pace of the trail. Three sensitivities allow greater versatility.Optimised Mode Selector (OMS)Various programs in the lights can easily be selected to offer a choice of run times and modes so you can find the right one for your ride, be it an all-night adventure or an intense blast.Intelligent Thermal Management (ITM)Patented circuitry within the light will reduce power to the LEDs, if they go beyond the optimum temperature, keeping the light as efficiently as possible to maximise output and battery capacity. Once cooled the output is automatically restored.Smart Port Technology Plus (SPT+)Smart Port+ enables the charge port to accept auxiliary accessories such as rear lights, remote switches, Support Cells and use your light as a power bank to charge USB devices.Fast ChargingImproved chargers have decreased charge time significantly from previous models of lights.Cable Free Design (CFD)The battery is housed within the body of the light so no cables or separate battery units are giving a neat solution with fewer opportunities for water ingress, mounting difficulties and crash damage. Combined with the renowned quick-release handlebar bracket lights are easy and quick to mount with rock solid attachment.Fuel GaugeUsing a traffic light system remaining runtime is easily monitored at a glance so you're not caught out. The colour feedback is also used for mode selection, before defaulting back to the runtime.Features: Max Output: 2100 Min Burn Time (hrs): 1 Max Burn Time (hrs): 18 Handlebar Mounted: Yes Stem Mounted: Optional Extra Helmet Mounted: Yes TAP Technology: Yes Low Power Indicator Pulse: Yes Smart Port Technology: Yes Cable Free Design: Yes Intelligent Thermal Management: Yes Optimum Mode Selector: Yes Fuel Gauge: Yes LEDs: 3 XPL2(W3) Internal Li-Ion Battery: Yes Support Cell: Optional Extra Charger: 1.5A Charge Time (hrs): 5 Smart Charger: Yes USB Charging: Yes Weight (g): 150 Length (mm): 120 Head (mm): 41 Back (mm): 33 Rating: IP65 Battery Capacity (mAh): 5000Buy Exposure Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.
The MET Drone features a unique wide body, an aerodynamic design which directs the flow of air, greatly decreasing turbulence and drag, allowing for that precious marginal increase in speed that could be the difference in beating your personal best. The added volume at the sides directs air over the rider's shoulders which significantly decreases the effect of turbulence. The results of wind-tunnel testing have revealed that this smart design will save 10 watts over 50KM/H over its predecessor as well as competitor helmets. The internal system of air channels maximises cooling by guiding heated air over and away from the head without affecting the aerodynamic advantage. The purpose-built Mag-Clip shield fits seamlessly with powerful, low-profile neodymium magnetic clips so it won't vibrate loose and there's an anti-fog coating to ensure visor clarity no matter how hard you ride. If you are serious about time trialling and want to upgrade your helmet give yourself an advantage over your competitors, the Met Drone Widebody delivers smart aerodynamic design in a cool, comfortable package.
MET Drone Wide Body HelmetShave seconds off of your personal best with the Drone Wide Body Helmet from MET. Designed to deliver savings of 10 watts over 50KM/H, this aerodynamic lid is certainly one for speed aficionados.Perfect for giving you the upper hand in time trials, the Drone Wide Body Helmet has been rigorously tested in the wind tunnels to ensure you can travel at the fastest speeds possible. Working to direct the flow of air around the head to decrease turbulence and drag, this speed enthusiast allows for a marginal increase in pace that makes all the difference to your time.Travel FasterOffering added levels of volume to the sides, air is directed over the shoulder to decrease turbulence, providing a smoother and faster ride. Having been put through its paces in the wind tunnel, the Drone Wide Body Helmet sports a smart design that improves on the performance levels of its predecessor and the lids of MET's main competitors.Highly Breathable.Even when saving you 10 watts over 50KM/H, the need to deliver an explosive cadence is still required. No matter how hard you push, the internal system of air channels ensures that cooling is maximised by guiding heated air over and away from the head without compromising on your aerodynamic advantage. Sporting air lite straps which keep you not only locked in but fresh thanks to their ability to deal with sweat, MET’s determination to offer you the ultimate experience in the saddle is certain to pay off on the track.The purpose-built Mag-Clip shield fits effortlessly with the powerful, low-profile neodymium magnetic clips to eliminate vibrations while the anti-fog coating ensures visor clarity no matter how hard you push yourself.Added ComfortMET really have gone all out to make sure high-end performance doesn’t mean comfort is compromised. There is soft polyurethane internal padding which works in tandem with the brand's Safe-T Advanced Fit system for the best weight to comfort ratio on the market. For those that ride aggressively, the contact points have a larger cradle surface to reduce weight and allow for perspiration out of the back of the head.Features:Proven saving of 10 watts at 50KM/H over its predecessor and competitor helmetsMag-clip shield stays in place securely with powerful, low-profile neodymium magnetic clipsAir lite straps which aid sweat evaporation and provide greater tensile strength with less weightStrap anchor points ae embedded in the polystyrene, improving aerodynamics by keeping the edges smooth for air to flow overMET's Safe-T Advanced fit system provides the best weight and comfort ratioContact points have a larger cradle surface so weight is kept low and allowing perspiration out of the back of the headSoft polyurethane internal paddingPolycarbonate lens and fabric bag suppliedWeight: 350g (M), 410g (L)Buy MET from Chain Reaction Cycles, the World's Largest Online Bike Store.
MET Drone Wide Body HelmetShave seconds off of your personal best with the Drone Wide Body Helmet from MET. Designed to deliver savings of 10 watts over 50KM/H, this aerodynamic lid is certainly one for speed aficionados.Perfect for giving you the upper hand in time trials, the Drone Wide Body Helmet has been rigorously tested in the wind tunnels to ensure you can travel at the fastest speeds possible. Working to direct the flow of air around the head to decrease turbulence and drag, this speed enthusiast allows for a marginal increase in pace that makes all the difference to your time.Travel FasterOffering added levels of volume to the sides, air is directed over the shoulder to decrease turbulence, providing a smoother and faster ride. Having been put through its paces in the wind tunnel, the Drone Wide Body Helmet sports a smart design that improves on the performance levels of its predecessor and the lids of MET's main competitors.Highly Breathable.Even when saving you 10 watts over 50KM/H, the need to deliver an explosive cadence is still required. No matter how hard you push, the internal system of air channels ensures that cooling is maximised by guiding heated air over and away from the head without compromising on your aerodynamic advantage. Sporting air lite straps which keep you not only locked in but fresh thanks to their ability to deal with sweat, MET’s determination to offer you the ultimate experience in the saddle is certain to pay off on the track.The purpose-built Mag-Clip shield fits effortlessly with the powerful, low-profile neodymium magnetic clips to eliminate vibrations while the anti-fog coating ensures visor clarity no matter how hard you push yourself.Added ComfortMET really have gone all out to make sure high-end performance doesn’t mean comfort is compromised. There is soft polyurethane internal padding which works in tandem with the brand's Safe-T Advanced Fit system for the best weight to comfort ratio on the market. For those that ride aggressively, the contact points have a larger cradle surface to reduce weight and allow for perspiration out of the back of the head.Features:Proven saving of 10 watts at 50KM/H over its predecessor and competitor helmetsMag-clip shield stays in place securely with powerful, low-profile neodymium magnetic clipsAir lite straps which aid sweat evaporation and provide greater tensile strength with less weightStrap anchor points ae embedded in the polystyrene, improving aerodynamics by keeping the edges smooth for air to flow overMET's Safe-T Advanced fit system provides the best weight and comfort ratioContact points have a larger cradle surface so weight is kept low and allowing perspiration out of the back of the headSoft polyurethane internal paddingPolycarbonate lens and fabric bag suppliedWeight: 350g (M), 410g (L)Buy MET from Chain Reaction Cycles, the World's Largest Online Bike Store.
A helmet that feels like it isn't there: the all-new Aries™ Spherical is like nothing before.Its sleeker form and lighter weight (only 270 grams in size medium CE certification) deliver sensational comfort and cooling power. Spherical Technology™ our ball-and-socket design powered by Mips® adds protection by redirecting energy away from the brain in certain impacts and Progressive Layering with dual densities of Nanobead EPS foam adds more comprehensive energy management. 24 Wind Tunnel vents are maximized by the AURA II Reinforcement Arch while a plush DryCore™ brow pad manages sweat and combines with a network of intricately engineered deep internal channeling to elevate comfort. From the proven reliability and adjustability of the Roc Loc® 5+ Air fit system to full lower hardbody coverage to enhance durability to the meticulous production quality the Aries is the epitome of top-shelf performance protection and style. STRUCTURAL INTEGRITY The proprietary AURA II Reinforcement Arch makes everything possible. These shatter-resistant translucent twin bridges run throughout the helmet providing structural integrity without adding unnecessary weight. Aries’ ultra-low weight (~5% lighter than Aether) impressive cooling power and sleek compact shape would not be possible without AURA II. SPHERICAL TECHNOLOGY This unique ball-and-socket design powered by Mips® helps redirect impact forces. Spherical Technology also boasts more comfort improved airflow and Progressive Layering (which mates two densities of EPS foam to address a wide range of impact energy).The results are clear: independent authority Virginia Tech has rated Aries #1 in reducing the risk of injury. It’s the best performing helmet they’ve tested so far – even out-performing much bigger bulkier helmets at reducing risk. COOL COMFORT Deep internal channels connect with Aries’ massive front and rear vents. This system provides a path for cool air to flow over the rider’s scalp and exit the rear taking excess heat with it. Aries outperforms our previous cooling benchmark the Aether with a 2.3% improvement in cooling efficiency.Aries also debuts our revolutionary DryCore™ sweat management system. A soft silicone bead is hidden within the plush brow pad that redirects sweat away from the forehead and to the temples where it can evaporate more easily. STREAMLINED SPEED When it comes to going fast smaller truly is better. To craft Aries we focused on reducing the frontal surface area to eliminate more drag. Add in tiny details like chamfered edges on the AURA II and meticulously engineered internal channeling that actually speeds up the air as it exits the helmet and Aries emerges as the climbing helmet that doesn’t sacrifice speed reducing aerodynamic drag by 4% over Aether Spherical. SPECS CONSTRUCTION IN-MOLD POLYCARBONATE SHELL WITH EPS LINER FULL LOWER HARDBODY COVERAGE VENTILATION DEEP INTERNAL CHANNELING FIT SYSTEM ROC LOC® 5+ AIR PRODUCT WEIGHT 275G (SIZE MEDIUM CPSC) CERTIFICATION COMPLIES WITH THE US CPSC SAFETY STANDARD FOR BICYCLE HELMET FOR PERSONS AGE 5 AND OLDER
Troy Lee Designs D4 Composite HelmetA classic of the mountain bike world, the Troy Lee Designs D4 Composite Helmet has a well-won reputation for delivering superb levels of comfort, protection and distinctive style. Pull it on and go get your mountain bike thrills in style. No matter where you get your mountain bike thrills, from weekend races on challenging downhills through to racing buddies to the bottom at the local trail centre or bike park, the D4 Composite Cycle Helmet has you covered. Confidence is given a boost thanks to its superb combination of safety features, unrivalled comfort and the usual Troy lee flair for design. Keeping weight low but protection and durability high is the aerospace-grade fibreglass composite shell. This wraps around an impact-absorbing EPS foam core - the forces from any crash are absorbed and dissipated by this core, offering outstanding crash protection. Meanwhile, breakaway screws prevent the visor from catching on the ground and help prevent neck injuries. Lastly, MIPS (Multi-directional Impact Protection System) provides excellent brain-injury prevention - more on that below.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Uncompromised ComfortWith this level of protection and head protection, you may think ventilation is compromised. But not a bit of it. Troy Lee have carefully engineered the outer vents and inner channels to work with the headliner so fresh air is free to circulate and keep you cool.Inside the D4 you'll also enjoy the brilliant XT2 washable liner. Lesser helmets will use standard foam liners which after continued use can soon start to feel uncomfortable and even itchy. Not the XT2. This anti-bacterial liner ensures no nasty odours or itchiness, and being washable you'll be able to keep it fresh for every ride.Tough, durable, protective and yet lightweight, the D4 Composite is the ideal full-face helmet for the weekend DH racer and avid mountain bike trail slayer.Features:Aerospace shell design and materials (D4 Composite)MIPS C2 brain protection systemFront air intake system with high flow through polymer centre and powergrid side meshCollarbone suspension systemBreakaway visor screwsX-static® and XT2® Anti-Microbial/anti-order paddingQuick-release contoured 3D cheek pads create an anatomically optimized fitWeight - 1050gCPSC 1203*, CE EN1078*, ASTM F1952 - DH, ASTM 2032 - BMX, *Varies by regional standardsShop all MIPS helmets - Click hereBuy Troy Lee Designs from Chain Reaction Cycles, the World's Largest Online Bike Store.
Troy Lee Designs D4 Composite HelmetA classic of the mountain bike world, the Troy Lee Designs D4 Composite Helmet has a well-won reputation for delivering superb levels of comfort, protection and distinctive style. Pull it on and go get your mountain bike thrills in style. No matter where you get your mountain bike thrills, from weekend races on challenging downhills through to racing buddies to the bottom at the local trail centre or bike park, the D4 Composite Cycle Helmet has you covered. Confidence is given a boost thanks to its superb combination of safety features, unrivalled comfort and the usual Troy lee flair for design. Keeping weight low but protection and durability high is the aerospace-grade fibreglass composite shell. This wraps around an impact-absorbing EPS foam core - the forces from any crash are absorbed and dissipated by this core, offering outstanding crash protection. Meanwhile, breakaway screws prevent the visor from catching on the ground and help prevent neck injuries. Lastly, MIPS (Multi-directional Impact Protection System) provides excellent brain-injury prevention - more on that below.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Uncompromised ComfortWith this level of protection and head protection, you may think ventilation is compromised. But not a bit of it. Troy Lee have carefully engineered the outer vents and inner channels to work with the headliner so fresh air is free to circulate and keep you cool.Inside the D4 you'll also enjoy the brilliant XT2 washable liner. Lesser helmets will use standard foam liners which after continued use can soon start to feel uncomfortable and even itchy. Not the XT2. This anti-bacterial liner ensures no nasty odours or itchiness, and being washable you'll be able to keep it fresh for every ride.Tough, durable, protective and yet lightweight, the D4 Composite is the ideal full-face helmet for the weekend DH racer and avid mountain bike trail slayer.Features:Aerospace shell design and materials (D4 Composite)MIPS C2 brain protection systemFront air intake system with high flow through polymer centre and powergrid side meshCollarbone suspension systemBreakaway visor screwsX-static® and XT2® Anti-Microbial/anti-order paddingQuick-release contoured 3D cheek pads create an anatomically optimized fitWeight - 1050gCPSC 1203*, CE EN1078*, ASTM F1952 - DH, ASTM 2032 - BMX, *Varies by regional standardsShop all MIPS helmets - Click hereBuy Troy Lee Designs from Chain Reaction Cycles, the World's Largest Online Bike Store.
Troy Lee Designs D4 Composite HelmetA classic of the mountain bike world, the Troy Lee Designs D4 Composite Helmet has a well-won reputation for delivering superb levels of comfort, protection and distinctive style. Pull it on and go get your mountain bike thrills in style. No matter where you get your mountain bike thrills, from weekend races on challenging downhills through to racing buddies to the bottom at the local trail centre or bike park, the D4 Composite Cycle Helmet has you covered. Confidence is given a boost thanks to its superb combination of safety features, unrivalled comfort and the usual Troy lee flair for design. Keeping weight low but protection and durability high is the aerospace-grade fibreglass composite shell. This wraps around an impact-absorbing EPS foam core - the forces from any crash are absorbed and dissipated by this core, offering outstanding crash protection. Meanwhile, breakaway screws prevent the visor from catching on the ground and help prevent neck injuries. Lastly, MIPS (Multi-directional Impact Protection System) provides excellent brain-injury prevention - more on that below.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Uncompromised ComfortWith this level of protection and head protection, you may think ventilation is compromised. But not a bit of it. Troy Lee have carefully engineered the outer vents and inner channels to work with the headliner so fresh air is free to circulate and keep you cool.Inside the D4 you'll also enjoy the brilliant XT2 washable liner. Lesser helmets will use standard foam liners which after continued use can soon start to feel uncomfortable and even itchy. Not the XT2. This anti-bacterial liner ensures no nasty odours or itchiness, and being washable you'll be able to keep it fresh for every ride.Tough, durable, protective and yet lightweight, the D4 Composite is the ideal full-face helmet for the weekend DH racer and avid mountain bike trail slayer.Features:Aerospace shell design and materials (D4 Composite)MIPS C2 brain protection systemFront air intake system with high flow through polymer centre and powergrid side meshCollarbone suspension systemBreakaway visor screwsX-static® and XT2® Anti-Microbial/anti-order paddingQuick-release contoured 3D cheek pads create an anatomically optimized fitWeight - 1050gCPSC 1203*, CE EN1078*, ASTM F1952 - DH, ASTM 2032 - BMX, *Varies by regional standardsShop all MIPS helmets - Click hereBuy Troy Lee Designs from Chain Reaction Cycles, the World's Largest Online Bike Store.
Troy Lee Designs D4 Composite HelmetA classic of the mountain bike world, the Troy Lee Designs D4 Composite Helmet has a well-won reputation for delivering superb levels of comfort, protection and distinctive style. Pull it on and go get your mountain bike thrills in style. No matter where you get your mountain bike thrills, from weekend races on challenging downhills through to racing buddies to the bottom at the local trail centre or bike park, the D4 Composite Cycle Helmet has you covered. Confidence is given a boost thanks to its superb combination of safety features, unrivalled comfort and the usual Troy lee flair for design. Keeping weight low but protection and durability high is the aerospace-grade fibreglass composite shell. This wraps around an impact-absorbing EPS foam core - the forces from any crash are absorbed and dissipated by this core, offering outstanding crash protection. Meanwhile, breakaway screws prevent the visor from catching on the ground and help prevent neck injuries. Lastly, MIPS (Multi-directional Impact Protection System) provides excellent brain-injury prevention - more on that below.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Uncompromised ComfortWith this level of protection and head protection, you may think ventilation is compromised. But not a bit of it. Troy Lee have carefully engineered the outer vents and inner channels to work with the headliner so fresh air is free to circulate and keep you cool.Inside the D4 you'll also enjoy the brilliant XT2 washable liner. Lesser helmets will use standard foam liners which after continued use can soon start to feel uncomfortable and even itchy. Not the XT2. This anti-bacterial liner ensures no nasty odours or itchiness, and being washable you'll be able to keep it fresh for every ride.Tough, durable, protective and yet lightweight, the D4 Composite is the ideal full-face helmet for the weekend DH racer and avid mountain bike trail slayer.Features:Aerospace shell design and materials (D4 Composite)MIPS C2 brain protection systemFront air intake system with high flow through polymer centre and powergrid side meshCollarbone suspension systemBreakaway visor screwsX-static® and XT2® Anti-Microbial/anti-order paddingQuick-release contoured 3D cheek pads create an anatomically optimized fitWeight - 1050gCPSC 1203*, CE EN1078*, ASTM F1952 - DH, ASTM 2032 - BMX, *Varies by regional standardsShop all MIPS helmets - Click hereBuy Troy Lee Designs from Chain Reaction Cycles, the World's Largest Online Bike Store.