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| alpinestars | 2023 Alpinestars Supertech S-m8 Sm8 Helmet Radium 2 Ucla Blue White Gloss New
2023 ALPINESTARS S-M8 HELMET – RADIUM 2 NIGHTLIFE UCLA BLUE/WHITE GLOSSY. At the outset of the MX helmet project, Alpinestars product philosophy was applied and a set of specific objectives set. Create the most advanced, protective and performance enhancing helmet possible. Primary objective: protection – to create the most high performance protection possible. Secondary objective: to give excellent ventilation, comfort and reduced weight. Alpinestars approach to the creation of the advanced technology in the Supertech M8 draws on its depth of experience from over half a decade of world class innovation across the spectrum of motorsports and especially, its deep rooted commitment to motocross. As with all other categories of technology that Alpinestars has mastered, bringing a new, highly complex, product to fruition requires specialist experience and know-how and a project plan led by the best brains in protection development. Hence Alpinestars Helmet Development Department was created and given the brief to research and develop the most protective and most comfortable possible motocross helmet. The goal was to allow riders to push the limits of performance, benefiting from confidence inspiring safety technology, reduced weight distribution to minimise muscular effort in the neck, shoulders and back and improved physiological and cognitive performance with a supremely well-fitting and well ventilated construction, optimizing comfort while riding. The design is coherent to Alpinestars philosophy and shares distinctive themes with other products in the portfolio; a smooth, attractive, profile which is streamlined and free of any external channels and features that might act as a load point in an impact, or compromise the overall integrity of the construction. The surface curvature promotes reduced friction on impact, allowing deflection and the most efficient transfer of energy to protect the rider’s head from direct force to the skull and referred to the neck and spinal column. The aperture is designed to accommodate a wide variety of goggles and the air vents in the shell are located to maximize ventilation efficiency. The S-M8 shell has been profiled with performance as a priority and with a design style that identifies the profile of the helmet and its sculpted surface as uniquely’Alpinestars’. Another key feature is the S-M8 shell sizing solution; each helmet fit size has its own appropriate shell size to deliver the most anatomical solution for the wide variety of fit needs worldwide. Safety: Supertech M8 Construction. Shell construction utilizes a highly advanced molding technology with a multi-composite combination: uni-directional carbon composite with aramid layer that gives significant radial strength around the shell, preventing compression but allowing controlled deflection for reducing transmitted impact energy, and providing critical penetration protection. This combination of layers is given even greater performance with an epoxy resin bonding that offers the best possible strength and energy management; limited outer shell deflection means the energy spreads wider and is better absorbed by the EPS liner. The result of the unique shell lay-up process employed in the S-M8 construction results in extremely effective impact protection. With a fully equipped helmet testing facility, within Alpinestars Racing Development Center, an exhaustive impact research program has resulted in the Supertech M8 returning linear and oblique impact performance which far improves upon current helmet regulation standard limits. For direct, linear, impact by an average magnitude of 41% and for rotational acceleration, oblique, impact performance by an average of 48%. S-M8 in four anatomical shell sizes. The Supertech M8 shell construction is optimized to offer best fit across the range of four size options. Shell sizes are manufactured in small, medium, large and extra-large to ensure that riders have the correct fit which not only improves comfort but, most importantly, the effectiveness of the helmet in an impact. The Supertech M8 liner construction combines with the shell to offer highly efficient impact energy management. Formed with a multi-density EPS polymer, the energy absorbing layer gives an inner helmet profile which soaks up impact forces dissipated over the outer shell at the point of an impact and provides a shape offering a close and comfortable fit. The energy absorption performance of the S-M8 is substantially improved by a four section construction that allows for specific densities of polymer to be prepared for different zones around the helmet lining. Not only is energy performance improved but also fit and comfort. Patented A-Head fitting height and angle adjustment system. The Supertech M8 incorporates a patented system to allow the helmet to be tuned exactly to the riders preference for the height and angle at which the helmet sits on the head. This unique technology allows for an ultra-specific set-up that can be adapted for the type of riding and the rider’s preference. With a micro-adjustable pad that is connected to the helmet inner shell, it is possible to raise or lower the helmet fit and also, to tilt the helmet forward, or backwards. Unique, patented, visor release system is another key attribute incorporated into the design of the Supertech M8. Visor release is a key part of overall protection performance in the helmet and a major influence on the distinctive, flush, design of the outer shell profile. Alpinestars has developed a unique visor release system which, while ensuring the mounting is held securely in place for riding over the most extreme terrain and any track conditions, provides exactly the right level of resistance to ensure the visor detatches from the helmet shell if it is subjected to a significant impact – no matter what the angle. The S-M8 visor release mechanism is conceived to avoid the inherent weaknesses in other types of anchoring systems. Maintaining shell integrity is vital for safety and with the possibility of multi-directional forces impacting on the visor, separation at the critical point of loading reduces potentially damaging leverage and rotational accelerations that refer injury to the rider’s neck and spine. Collarbone protection is an important design feature of the Supertech M8 helmet shell base profile. The base of the S-M8 has been sculpted to give a relief section, where the bottom profile is raised to clear the collarbone (Clavicle). Also, incorporated into the area of the base pad, where it sits over the rider’s collarbone, is an energy absorbtion pad; a more flexible compound rubber section which allows deflection when it contacts the Clavicle. The Supertech M8 chin-bar is formed with polypropylene which, by allowing for a degree of lateral deflection, further improves impact protection for the collarbones. Post-crash protection mechanisms are also a key feature of the Supertech M8 design, allowing rapid and safe intervention if the rider has suffered a major impact. Multi-Directional Impact Protection System: MIPS. MIPS is incorporated into the Supertech M8 to reduce rotational motion energies that impact the helmet causing damaging gyration force to be transmitted to the brain. A low friction’slip’ layer is incorporated into the Supertech M8 helmet, between the comfort padding layer and the multi-density polymer energy absorption shell. When energy is impacted upon the helmet, causing a rotation force, the MIPS layer allows for movement of the inner absorbtion layer to damp and re-direct the energy before causing significant acceleration stress to the brain. This mitigates the causes of brain injuries, such as concussion. Emergency Release System (ERS). The side cheek padding of the S-M8 can be extracted efficiently and safely, while the helmet is still on the rider’s head, to allow ease of removal by trackside support and medical staff. The Supertech M8 is also designed to allow a helmet’Eject’ inflation system to be fitted into the inside crown of the shell. Along with the ERS padding removal,’Eject’ allows for emergency removal of the helmet, without putting load on the rider’s spine. Chin-strap: Wider than certification requirement: 26 mm for comfort and produced with a woven poly yarn to give a soft’hand’ feel that connects securely with a double D-ring. Weight: Reduced by design while allowing the Supertech M8 protection to be class-leading. Weight is both a factor in riding performance and safety in a helmet and to ensure the S-M8 offers the ultimate in weight saving performance enhancement, the material selection, preparation and construction of the helmet has been rigorously analysed for weight to strength and energy absorbtion properties and a strict analysis of all the components used in the Supertech M8 finishing. Weight of S-M8 is 1300g for size Medium (ECE) – 1360g for size Medium (DOT). Ventilation is a key feature of the Supertech M8. Heat mapping tests have resulted in specifically designed ducting which produces a positive flow into the helmet over and around the rider’s head, improving comfort while riding and reducing the on-set of heat stress in extreme conditions. The visor design of the S-M8 is also an integral part of the ventilation system as it is profiled to direct airflow, acting as a channel to concentrate and smooth the flow into the shell. The Supertech M8 liner design is formed to optimize airflow channeling around the rider’s head before being extracted from the S-M8 through rear exhaust vents to ensure positive pressure is maintained with constant airflow while riding. The Supertech M8 helmet lining design includes canals which allow a tube to be incorporated on either side of the shell. This is a feature extensively tested by Alpinestars rally raid and enduro riders enabling convenient fitting and connection to a hydration system. Removable liner cover is washable and features a cool-max fabric interior and anti-bacterial talent yarn for long-lasting freshness and quick-dry performance between riding sessions. Helmet features TPE coating washable surfaces to improve maintenance and increase durability. Additional cheek pad set offering increased thickness of +5mm, for tighter fit adjustment – available separately. Accessories included with the Supertech M8. The Supertech M8 Certifications. The Supertech M8 helmet versions conform to both DOT certification and ECE homologation for use worldwide. Check out our other great items in our e-bay shop. MAD 4 MOTOCROSS LTD. This item is in the category “Vehicle Parts & Accessories\Clothing, Protective Gear & Merchandise\Helmets & Accessories\Motorcycle & Motorsports Helmets”. The seller is “mad-4-motocross-ltd-09″ and is located in this country: GB. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Republic of Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, Bahrain, Canada, Brazil, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Bermuda, Bolivia, Barbados, Brunei Darussalam, Cayman Islands, Ecuador, Egypt, Guernsey, Gibraltar, Guadeloupe, French Guiana, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri Lanka, Macau, Monaco, Maldives, Martinique, Nicaragua, Oman, Pakistan, Peru, Paraguay, Reunion, Saudi Arabia, South Africa, United Arab Emirates, Chile, Bahamas, Colombia, Costa Rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, Trinidad and Tobago, Vietnam, Antigua and Barbuda, Belize, Dominica, Grenada, Saint Kitts-Nevis, Saint Lucia, Montserrat, Turks and Caicos Islands, Aruba.
- Size: X-SMALL – 53/54cm
- Brand: Alpinestars
- Use: Motocross & ATV
- Model: S-M8
- Gender: Men’s
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| alpinestars | Alpinestars SM5 Solid White Gloss Motocross Helmet All sizes

The all-new SM5 helmet is the result of more than five years of intensive study, development and testing. We scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort. This lightweight helmet features a thermo-injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight, while the five density EPS liner ensures the correct density in the correct area for enhanced impact absorption. Other key design features include an engineered raised area with padding to effectively reduce the forces transmitted to the collarbone and a patented visor release system that ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact. Lightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic in two sizes. The inner and outer surfaces are engineered to minimize the effects of oblique impacts. Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption. Patented visor release system ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact. The visor has been designed to direct air into the ports for enhanced airflow. Side shell couple with soft EPS foam prevents damage to collarbone in the event of a crash. Emergency release system and removable cheek pads permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort. Removable comfort liner with Silverplus® treated anti-bacterial fabrics for excellent moisture wicking, effectively drawing perspiration away from the skin. Anti-microbial liner is removable and washable. Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance. Soft textile chin strap is 26mm and is wider than certification requirements for optimal safety and rider comfort. Stainless steel D-rings to ensure a tight and secure fit. A size Medium weighs 1260g (ECE) 1370g (DOT). The SM5 helmet conforms to both DOT certification and ECE homologation for use worldwide. We are a family business that’s dedicated to the motocross industry, You Ride it? We can supply it! Whether you are new to the off road scene, or an experienced campaigner, MD Racing Products should be top of your contacts list. In a nutshell, we are one of the most established & longest running off Road companies. Check availability with our specialists. This item is in the category “Vehicle Parts & Accessories\Clothing, Protective Gear & Merchandise\Helmets & Accessories\Motorcycle & Motorsports Helmets”. The seller is “mdracingproducts” and is located in this country: GB. This item can be shipped worldwide.
- Size: S
- Features: ECE 22-05 Approved, Compatible with neck braces, Quick release micro-adjustable strap buckle, ACU Approved, The visor has been designed to direct air in
- Custom Bundle: No
- Department: Unisex
- Shell Construction: Polycarbonate
- Modified Item: No
- Labels & Certifications: ACU Approved, DOT Approved, ECE Approved
- Country/Region of Manufacture: Unknown
- Bundle Listing: No
- Colour: white
- Shell Sizes: XS-XXL
- Model: SM5
- Weight Range: Medium 1260G ECE – 1370g DOT
- Exact Colour: white
- Bundled Items: Helmet Bag, Manual
- Performance/Activity: Off-Road, Motocross/Enduro
- Approved: ECE & DOT certified , ACU Gold Stamp
- Design: Graphic
- Finish: Gloss
- Brand: Alpinestars
- Closure: Soft textile chin strap is 26mm, Double D Style
- Type: Off-Road
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| alpinestars | Alpinestars SM5 Solid White Gloss Motocross MX Crash Helmet
Over 70,000 products to choose from. Alpinestars SM5 Solid White Gloss Motocross MX Crash Helmet. The all-new SM5 helmet is the result of more than five years of intensive study, development and testing. We scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort. This lightweight helmet features a thermo-injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight, while the five density EPS liner ensures the correct density in the correct area for enhanced impact absorption. Other key design features include an engineered raised area with padding to effectively reduce the forces transmitted to the collarbone and a patented visor release system that ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact. Lightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic in two sizes. The inner and outer surfaces are engineered to minimize the effects of oblique impacts. Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption. Patented visor release system ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact. The visor has been designed to direct air into the ports for enhanced airflow. Side shell couple with soft EPS foam prevents damage to collarbone in the event of a crash. Emergency release system and removable cheek pads permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort. Removable comfort liner with Silverplus® treated anti-bacterial fabrics for excellent moisture wicking, effectively drawing perspiration away from the skin. Anti-microbial liner is removable and washable. Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance. Soft textile chin strap is 26mm and is wider than certification requirements for optimal safety and rider comfort. Stainless steel D-rings to ensure a tight and secure fit. A size Medium weighs 1260g (ECE) 1370g (DOT). The SM5 helmet conforms to both DOT certification and ECE homologation for use worldwide. Your item will be professionally & carefully packed and despatched in a timely manner. If you change your mind. If you have simply changed your mind about any item ordered and you wish to return it, then you can do so provided you inform us of your decision within 30 days of receipt. If your items are faulty on arrival, you should inform us as soon as reasonably possible. We are not responsible for the loss or damage of items during their return. Return address M&P Direct Ltd. Phoenix Way, Garngoch Industrial Estate, Gorseinon, Swansea. We’re here to help. Our aim is to enhance your biking experience by making sure that we have the products that you want, when you want them. With some staff having over 25 years experience and a state of the art ordering system we want to give you peace of mind in knowing our aim is to put you on the road and keep you there. This item is in the category “Vehicle Parts & Accessories\Clothing, Protective Gear & Merchandise\Helmets & Accessories\Motorcycle & Motorsports Helmets”. The seller is “m_and_p” and is located in this country: GB. This item can be shipped to United Kingdom.
- Size: XL
- Brand: Alpinestars
- Manufacturer: Alpinestars
- Manufacturer Part Number: CH05876
- MPN: CH05876
- Vehicle Type: Motorcycle
- Type: Crash Helmet
- Sub Type: MX
- Model: SMS
- Model/ Series: Solid
- Colour: White Gloss
- Material: Advanced impact resistant thermoplastic
- Classic Motorcycle Part: No
- Custom Bundle: No
- Modified Item: No
- Unit Type: 1
- Unit Quantity: Unit
Alpinestars S-M5 Motocross Helmet. The all-new SM5 helmet is the result of more than five years of intensive study, development and testing. We scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort. This lightweight helmet features a thermo-injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight, while the five density EPS liner ensures the correct density in the correct area for enhanced impact absorption. Other key design features include an engineered raised area with padding to effectively reduce the forces transmitted to the collarbone and a patented visor release system that ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact. Soft textile chin strap is 26mm and is wider than certification requirements for optimal safety and rider comfort Stainless steel D-rings to ensure a tight and secure fit A size Medium weighs 1260g (ECE) 1370g (DOT) The SM5 helmet conforms to both DOT certification and ECE homologation for use worldwide. Lightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic in two sizes. The inner and outer surfaces are engineered to minimize the effects of oblique impacts. Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption. Patented visor release system ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact. The visor has been designed to direct air into the ports for enhanced airflow. Side shell couple with soft EPS foam prevents damage to collarbone in the event of a crash. Emergency release system and removable cheek pads permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort. Removable comfort liner with Silverplus® treated anti-bacterial fabrics for excellent moisture wicking, effectively drawing perspiration away from the skin. Anti-microbial liner is removable and washable. Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance. Soft textile chin strap is 26mm and is wider than certification requirements for optimal safety and rider comfort. Stainless steel D-rings to ensure a tight and secure fit. A size Medium weighs 1260g (ECE) 1370g (DOT). The SM5 helmet conforms to both DOT certification and ECE homologation for use worldwide. Here at gear change we always have deals consistently running, so get in contact with us for the best deals available. This product is already quite heavily discounted, but if you message us. We would be happy to see if it is possible to reduce it further. To see if a further discount can be made. Talk to us whenever you need expert technical advice. Use our 20 years of product knowledge to help choose the gear that’s right for you and your riding. Go on put us to the test! Some of Our favourite brands. You may also like. View more great items! Add to Favourite Sellers. Sign up to Newsletter. This listing is currently undergoing maintenance, we apologise for any inconvenience caused. This item is in the category “Vehicle Parts & Accessories\Clothing, Protective Gear & Merchandise\Helmets & Accessories\Motorcycle & Motorsports Helmets”. The seller is “gearchangeonline” and is located in this country: GB. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Republic of Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Norway, Switzerland, Guernsey, Gibraltar, Iceland, Jersey, Liechtenstein, Monaco.
- Colour: Speed White/Dark Blue/Red Gloss
- Size: S (55 – 56 CM)
- Brand: Alpinestars
- Closure: Double-D Rings
- Department: Men, Women, Unisex
- Design: Graphic
- Features: Removable Interior
- Labels & Certifications: ACU Approved, ECE Approved
- Manufacturer Part Number: MD_830
- Model: S-M5
- Performance/Activity: MX, Off Road
- SHARP Rating: Not Rated
- Shell Construction: Thermoplastic
- Type: Off Road
- Visible Logo: Alpinestars
- Visor Design: Clear
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| alpinestars | Alpinestars SM5 Supertech MX Motocross Helmet Bond White Red Gloss


The all-new SM5 helmet is the result of more than five years of intensive study, development and testing. We scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort. This lightweight helmet features a thermo-injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight, while the five density EPS liner ensures the correct density in the correct area for enhanced impact absorption. Other key design features include an engineered raised area with padding to effectively reduce the forces transmitted to the collarbone and a patented visor release system that ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact. Lightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic in two sizes. The inner and outer surfaces are engineered to minimize the effects of oblique impacts. Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption. Patented visor release system ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact. The visor has been designed to direct air into the ports for enhanced airflow. Side shell couple with soft EPS foam prevents damage to collarbone in the event of a crash. Emergency release system and removable cheek pads permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort. Removable comfort liner with Silverplus® treated anti-bacterial fabrics for excellent moisture wicking, effectively drawing perspiration away from the skin. Anti-microbial liner is removable and washable. Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance. Soft textile chin strap is 26mm and is wider than certification requirements for optimal safety and rider comfort. Stainless steel D-rings to ensure a tight and secure fit. A size Medium weighs 1260g (ECE) 1370g (DOT). The SM5 helmet conforms to both DOT certification and ECE homologation for use worldwide. We are a family business that’s dedicated to the motocross industry, You Ride it? We can supply it! Whether you are new to the off road scene, or an experienced campaigner, MD Racing Products should be top of your contacts list. In a nutshell, we are one of the most established & longest running off Road companies. Check availability with our specialists. This item is in the category “Vehicle Parts & Accessories\Clothing, Protective Gear & Merchandise\Helmets & Accessories\Motorcycle & Motorsports Helmets”. The seller is “mdracingproducts” and is located in this country: GB. This item can be shipped worldwide.
- Size: S
- Features: ECE 22-05 Approved, Compatible with neck braces, Quick release micro-adjustable strap buckle, ACU Approved, The visor has been designed to direct air in
- Custom Bundle: No
- Department: Unisex Adult
- Shell Construction: Polycarbonate
- Modified Item: No
- Labels & Certifications: ACU Approved, DOT Approved, ECE Approved
- Country/Region of Manufacture: Unknown
- Bundle Listing: No
- Colour: Black
- Shell Sizes: XS-XXL
- Model: SM5
- Weight Range: Medium 1260G ECE – 1370g DOT
- Exact Colour: White Red
- Bundled Items: Helmet Bag, Manual
- Performance/Activity: Motocross/Enduro, Off-Road
- Approved: ECE & DOT certified , ACU Gold Stamp
- Design: Graphic
- Finish: Gloss
- Brand: Alpinestars
- Closure: Double D Style, Soft textile chin strap is 26mm
- Type: Off-Road