MT Thunder 4 SV

Our ECE-certified Gringo S boasts fit, finish and safety technology identical to its full-face sibling, but features a CE-certified flip-up face shield for added safety and riding comfort.

Features:

• Injection-molded ABS outer shell is rugged yet lightweight—the best combination of features for a motorcycle helmet
• Three-piece Expanded Polystyrene (EPS) safety liner dissipates impact loads and fortifies helmet structure for a secure fit without compromising comfort
• Molded urethane chin bar pad dissipates energy from frontal impacts
• Removable/replaceable comfort liner and cheek pads feature brushed fleece Lycra touch points to absorb and evaporate perspiration
• Chin strap features brushed fleece Lycra touch points for comfort and an adjustable strap end retainer
• CE-certified polycarbonate shield includes anti-fog and anti-scratch treatments for safety and durability
• Rugged shield hinge hardware with robust detents allows you to open the shield at slow speeds for increased airflow 
• Molded recesses inside EPS designed to accept various aftermarket audio and communication components

Fitment:

Please follow the instructions in our sizing chart before ordering a new helmet in the same size as your current model. We offer accessory cheek pads so you can fine-tune the tightness of your helmet around your jaw and face.

The most affordable helmet on the market, with the highest safety homologation. The MT Thunder 4 SV represents all the drive and technological evolution of MT Helmets.

The arrival of the new ECE 22.06 certification has made MT Helmets a specialist in safety homologations and sends a very clear message to the industry: now safety on a bike is within everyone’s reach.

Features:

• HIRP Shell (High Impact Resistant Polymer) for excellent impact response. 2 Shell Sizes
• Three-Point Protector System – The base of this helmet has a three-point support system that has been developed to provide good stability when the Thunder 4 SV is placed on flat surfaces. This makes it easier to handle the helmet for cleaning or maintenance, but also allows the elements inside the helmet to be insulated from the surface, protecting them from chafing and, above all, enhancing hygiene when using the helmet
• Airflow Channel System – Through fluid dynamics analysis, air channels have been designed to minimize air resistance and boost internal ventilation flow, reducing temperature and moisture inside the helmet
• Reduced Aero Drag Design – An aerodynamic design studied by the MT Helmets engineering team to reduce aerodynamic resistance as much as possible
• Racing Spoiler
   
• ECE R-22.06 (EU) Approved. This helmet exceeds the highest safety standards and has passed, since its launch, the new ECE 22.06 test required for the European market
• Micrometric Double Toothed Closure – Redesigned micrometric retention system to keep the helmet always fastened and secured. The MT Helmets engineering department has developed this system to ensure that the fastener is locked by at least two points, ensuring that the system is secured. This locking system, optimal for sport-touring models, offers the best balance between wearing comfort and safety
• 1650 (+/-50) grams, its weight is well distributed
   
• Quick Visor Swap System – A system designed in-house by the MT Helmets Engineering team. The first helmet to feature this technology. This system, which has been patented by MT Helmets, allows the rider to attach/detach the visor really quickly and comfortably without having to take the helmet off
• Extended Vision Area – The extended vision area allows riders to have better visibility of their surroundings, increasing ride comfort and improving the riding experience and safety on the bike
• Extended Sun Visor Protection – Retractable sun visor system offering extended protection, preventing distortion due to changes in light conditions. It comes with a mechanism that can be quickly and comfortably used with one hand. It is also detachable for easy cleaning and maintenance.
• Pinlock 100% Max Vision – The Thunder 4 SV features space for a Pinlock 100% Max Vision insert
   
• The interior pads have been developed specifically for each helmet size to fit all head sizes in an optimal way
• The materials used for the manufacture of these elements combine different fabrics that favor ventilation, exhaust moisture, and drying quickly
• Removable and washable liners that allow you to keep your helmet clean and fresh
• Emergency Release System – Quick release system for side pads for removing the helmet in case of an accident. This system prevents possible damage during a helmet removal maneuver
• Universal Intercom Cage – This helmet has been developed taking into account the needs arising from the incorporation of an intercom system and has specific spaces to fit an intercom communication system

The most affordable helmet on the market, with the highest safety homologation. The MT Thunder 4 SV represents all the drive and technological evolution of MT Helmets.

The arrival of the new ECE 22.06 certification has made MT Helmets a specialist in safety homologations and sends a very clear message to the industry: now safety on a bike is within everyone’s reach.

Features:

• HIRP Shell (High Impact Resistant Polymer) for excellent impact response. 2 Shell Sizes
• Three-Point Protector System – The base of this helmet has a three-point support system that has been developed to provide good stability when the Thunder 4 SV is placed on flat surfaces. This makes it easier to handle the helmet for cleaning or maintenance, but also allows the elements inside the helmet to be insulated from the surface, protecting them from chafing and, above all, enhancing hygiene when using the helmet
• Airflow Channel System – Through fluid dynamics analysis, air channels have been designed to minimize air resistance and boost internal ventilation flow, reducing temperature and moisture inside the helmet
• Reduced Aero Drag Design – An aerodynamic design studied by the MT Helmets engineering team to reduce aerodynamic resistance as much as possible
• Racing Spoiler
   
• ECE R-22.06 (EU) Approved. This helmet exceeds the highest safety standards and has passed, since its launch, the new ECE 22.06 test required for the European market
• Micrometric Double Toothed Closure – Redesigned micrometric retention system to keep the helmet always fastened and secured. The MT Helmets engineering department has developed this system to ensure that the fastener is locked by at least two points, ensuring that the system is secured. This locking system, optimal for sport-touring models, offers the best balance between wearing comfort and safety
• 1650 (+/-50) grams, its weight is well distributed
   
• Quick Visor Swap System – A system designed in-house by the MT Helmets Engineering team. The first helmet to feature this technology. This system, which has been patented by MT Helmets, allows the rider to attach/detach the visor really quickly and comfortably without having to take the helmet off
• Extended Vision Area – The extended vision area allows riders to have better visibility of their surroundings, increasing ride comfort and improving the riding experience and safety on the bike
• Extended Sun Visor Protection – Retractable sun visor system offering extended protection, preventing distortion due to changes in light conditions. It comes with a mechanism that can be quickly and comfortably used with one hand. It is also detachable for easy cleaning and maintenance.
• Pinlock 100% Max Vision – The Thunder 4 SV features space for a Pinlock 100% Max Vision insert
   
• The interior pads have been developed specifically for each helmet size to fit all head sizes in an optimal way
• The materials used for the manufacture of these elements combine different fabrics that favor ventilation, exhaust moisture, and drying quickly
• Removable and washable liners that allow you to keep your helmet clean and fresh
• Emergency Release System – Quick release system for side pads for removing the helmet in case of an accident. This system prevents possible damage during a helmet removal maneuver
• Universal Intercom Cage – This helmet has been developed taking into account the needs arising from the incorporation of an intercom system and has specific spaces to fit an intercom communication system

The most affordable helmet on the market, with the highest safety homologation. The MT Thunder 4 SV represents all the drive and technological evolution of MT Helmets.

The arrival of the new ECE 22.06 certification has made MT Helmets a specialist in safety homologations and sends a very clear message to the industry: now safety on a bike is within everyone’s reach.

Features:

• HIRP Shell (High Impact Resistant Polymer) for excellent impact response. 2 Shell Sizes
• Three-Point Protector System – The base of this helmet has a three-point support system that has been developed to provide good stability when the Thunder 4 SV is placed on flat surfaces. This makes it easier to handle the helmet for cleaning or maintenance, but also allows the elements inside the helmet to be insulated from the surface, protecting them from chafing and, above all, enhancing hygiene when using the helmet
• Airflow Channel System – Through fluid dynamics analysis, air channels have been designed to minimize air resistance and boost internal ventilation flow, reducing temperature and moisture inside the helmet
• Reduced Aero Drag Design – An aerodynamic design studied by the MT Helmets engineering team to reduce aerodynamic resistance as much as possible
• Racing Spoiler
   
• ECE R-22.06 (EU) Approved. This helmet exceeds the highest safety standards and has passed, since its launch, the new ECE 22.06 test required for the European market
• Micrometric Double Toothed Closure – Redesigned micrometric retention system to keep the helmet always fastened and secured. The MT Helmets engineering department has developed this system to ensure that the fastener is locked by at least two points, ensuring that the system is secured. This locking system, optimal for sport-touring models, offers the best balance between wearing comfort and safety
• 1650 (+/-50) grams, its weight is well distributed
   
• Quick Visor Swap System – A system designed in-house by the MT Helmets Engineering team. The first helmet to feature this technology. This system, which has been patented by MT Helmets, allows the rider to attach/detach the visor really quickly and comfortably without having to take the helmet off
• Extended Vision Area – The extended vision area allows riders to have better visibility of their surroundings, increasing ride comfort and improving the riding experience and safety on the bike
• Extended Sun Visor Protection – Retractable sun visor system offering extended protection, preventing distortion due to changes in light conditions. It comes with a mechanism that can be quickly and comfortably used with one hand. It is also detachable for easy cleaning and maintenance.
• Pinlock 100% Max Vision – The Thunder 4 SV features space for a Pinlock 100% Max Vision insert
   
• The interior pads have been developed specifically for each helmet size to fit all head sizes in an optimal way
• The materials used for the manufacture of these elements combine different fabrics that favor ventilation, exhaust moisture, and drying quickly
• Removable and washable liners that allow you to keep your helmet clean and fresh
• Emergency Release System – Quick release system for side pads for removing the helmet in case of an accident. This system prevents possible damage during a helmet removal maneuver
• Universal Intercom Cage – This helmet has been developed taking into account the needs arising from the incorporation of an intercom system and has specific spaces to fit an intercom communication system

The most affordable helmet on the market, with the highest safety homologation. The MT Thunder 4 SV represents all the drive and technological evolution of MT Helmets.

The arrival of the new ECE 22.06 certification has made MT Helmets a specialist in safety homologations and sends a very clear message to the industry: now safety on a bike is within everyone’s reach.

Features:

• HIRP Shell (High Impact Resistant Polymer) for excellent impact response. 2 Shell Sizes
• Three-Point Protector System – The base of this helmet has a three-point support system that has been developed to provide good stability when the Thunder 4 SV is placed on flat surfaces. This makes it easier to handle the helmet for cleaning or maintenance, but also allows the elements inside the helmet to be insulated from the surface, protecting them from chafing and, above all, enhancing hygiene when using the helmet
• Airflow Channel System – Through fluid dynamics analysis, air channels have been designed to minimize air resistance and boost internal ventilation flow, reducing temperature and moisture inside the helmet
• Reduced Aero Drag Design – An aerodynamic design studied by the MT Helmets engineering team to reduce aerodynamic resistance as much as possible
• Racing Spoiler
   
• ECE R-22.06 (EU) Approved. This helmet exceeds the highest safety standards and has passed, since its launch, the new ECE 22.06 test required for the European market
• Micrometric Double Toothed Closure – Redesigned micrometric retention system to keep the helmet always fastened and secured. The MT Helmets engineering department has developed this system to ensure that the fastener is locked by at least two points, ensuring that the system is secured. This locking system, optimal for sport-touring models, offers the best balance between wearing comfort and safety
• 1650 (+/-50) grams, its weight is well distributed
   
• Quick Visor Swap System – A system designed in-house by the MT Helmets Engineering team. The first helmet to feature this technology. This system, which has been patented by MT Helmets, allows the rider to attach/detach the visor really quickly and comfortably without having to take the helmet off
• Extended Vision Area – The extended vision area allows riders to have better visibility of their surroundings, increasing ride comfort and improving the riding experience and safety on the bike
• Extended Sun Visor Protection – Retractable sun visor system offering extended protection, preventing distortion due to changes in light conditions. It comes with a mechanism that can be quickly and comfortably used with one hand. It is also detachable for easy cleaning and maintenance.
• Pinlock 100% Max Vision – The Thunder 4 SV features space for a Pinlock 100% Max Vision insert
   
• The interior pads have been developed specifically for each helmet size to fit all head sizes in an optimal way
• The materials used for the manufacture of these elements combine different fabrics that favor ventilation, exhaust moisture, and drying quickly
• Removable and washable liners that allow you to keep your helmet clean and fresh
• Emergency Release System – Quick release system for side pads for removing the helmet in case of an accident. This system prevents possible damage during a helmet removal maneuver
• Universal Intercom Cage – This helmet has been developed taking into account the needs arising from the incorporation of an intercom system and has specific spaces to fit an intercom communication system

The most affordable helmet on the market, with the highest safety homologation. The MT Thunder 4 SV represents all the drive and technological evolution of MT Helmets.

The arrival of the new ECE 22.06 certification has made MT Helmets a specialist in safety homologations and sends a very clear message to the industry: now safety on a bike is within everyone’s reach.

Features:

• HIRP Shell (High Impact Resistant Polymer) for excellent impact response. 2 Shell Sizes
• Three-Point Protector System – The base of this helmet has a three-point support system that has been developed to provide good stability when the Thunder 4 SV is placed on flat surfaces. This makes it easier to handle the helmet for cleaning or maintenance, but also allows the elements inside the helmet to be insulated from the surface, protecting them from chafing and, above all, enhancing hygiene when using the helmet
• Airflow Channel System – Through fluid dynamics analysis, air channels have been designed to minimize air resistance and boost internal ventilation flow, reducing temperature and moisture inside the helmet
• Reduced Aero Drag Design – An aerodynamic design studied by the MT Helmets engineering team to reduce aerodynamic resistance as much as possible
• Racing Spoiler
   
• ECE R-22.06 (EU) Approved. This helmet exceeds the highest safety standards and has passed, since its launch, the new ECE 22.06 test required for the European market
• Micrometric Double Toothed Closure – Redesigned micrometric retention system to keep the helmet always fastened and secured. The MT Helmets engineering department has developed this system to ensure that the fastener is locked by at least two points, ensuring that the system is secured. This locking system, optimal for sport-touring models, offers the best balance between wearing comfort and safety
• 1650 (+/-50) grams, its weight is well distributed
   
• Quick Visor Swap System – A system designed in-house by the MT Helmets Engineering team. The first helmet to feature this technology. This system, which has been patented by MT Helmets, allows the rider to attach/detach the visor really quickly and comfortably without having to take the helmet off
• Extended Vision Area – The extended vision area allows riders to have better visibility of their surroundings, increasing ride comfort and improving the riding experience and safety on the bike
• Extended Sun Visor Protection – Retractable sun visor system offering extended protection, preventing distortion due to changes in light conditions. It comes with a mechanism that can be quickly and comfortably used with one hand. It is also detachable for easy cleaning and maintenance.
• Pinlock 100% Max Vision – The Thunder 4 SV features space for a Pinlock 100% Max Vision insert
   
• The interior pads have been developed specifically for each helmet size to fit all head sizes in an optimal way
• The materials used for the manufacture of these elements combine different fabrics that favor ventilation, exhaust moisture, and drying quickly
• Removable and washable liners that allow you to keep your helmet clean and fresh
• Emergency Release System – Quick release system for side pads for removing the helmet in case of an accident. This system prevents possible damage during a helmet removal maneuver
• Universal Intercom Cage – This helmet has been developed taking into account the needs arising from the incorporation of an intercom system and has specific spaces to fit an intercom communication system

The most affordable helmet on the market, with the highest safety homologation. The MT Thunder 4 SV represents all the drive and technological evolution of MT Helmets.

The arrival of the new ECE 22.06 certification has made MT Helmets a specialist in safety homologations and sends a very clear message to the industry: now safety on a bike is within everyone’s reach.

Features:

• HIRP Shell (High Impact Resistant Polymer) for excellent impact response. 2 Shell Sizes
• Three-Point Protector System – The base of this helmet has a three-point support system that has been developed to provide good stability when the Thunder 4 SV is placed on flat surfaces. This makes it easier to handle the helmet for cleaning or maintenance, but also allows the elements inside the helmet to be insulated from the surface, protecting them from chafing and, above all, enhancing hygiene when using the helmet
• Airflow Channel System – Through fluid dynamics analysis, air channels have been designed to minimize air resistance and boost internal ventilation flow, reducing temperature and moisture inside the helmet
• Reduced Aero Drag Design – An aerodynamic design studied by the MT Helmets engineering team to reduce aerodynamic resistance as much as possible
• Racing Spoiler
   
• ECE R-22.06 (EU) Approved. This helmet exceeds the highest safety standards and has passed, since its launch, the new ECE 22.06 test required for the European market
• Micrometric Double Toothed Closure – Redesigned micrometric retention system to keep the helmet always fastened and secured. The MT Helmets engineering department has developed this system to ensure that the fastener is locked by at least two points, ensuring that the system is secured. This locking system, optimal for sport-touring models, offers the best balance between wearing comfort and safety
• 1650 (+/-50) grams, its weight is well distributed
   
• Quick Visor Swap System – A system designed in-house by the MT Helmets Engineering team. The first helmet to feature this technology. This system, which has been patented by MT Helmets, allows the rider to attach/detach the visor really quickly and comfortably without having to take the helmet off
• Extended Vision Area – The extended vision area allows riders to have better visibility of their surroundings, increasing ride comfort and improving the riding experience and safety on the bike
• Extended Sun Visor Protection – Retractable sun visor system offering extended protection, preventing distortion due to changes in light conditions. It comes with a mechanism that can be quickly and comfortably used with one hand. It is also detachable for easy cleaning and maintenance.
• Pinlock 100% Max Vision – The Thunder 4 SV features space for a Pinlock 100% Max Vision insert
   
• The interior pads have been developed specifically for each helmet size to fit all head sizes in an optimal way
• The materials used for the manufacture of these elements combine different fabrics that favor ventilation, exhaust moisture, and drying quickly
• Removable and washable liners that allow you to keep your helmet clean and fresh
• Emergency Release System – Quick release system for side pads for removing the helmet in case of an accident. This system prevents possible damage during a helmet removal maneuver
• Universal Intercom Cage – This helmet has been developed taking into account the needs arising from the incorporation of an intercom system and has specific spaces to fit an intercom communication system

The most affordable helmet on the market, with the highest safety homologation. The MT Thunder 4 SV represents all the drive and technological evolution of MT Helmets.

The arrival of the new ECE 22.06 certification has made MT Helmets a specialist in safety homologations and sends a very clear message to the industry: now safety on a bike is within everyone’s reach.

Features:

• HIRP Shell (High Impact Resistant Polymer) for excellent impact response. 2 Shell Sizes
• Three-Point Protector System – The base of this helmet has a three-point support system that has been developed to provide good stability when the Thunder 4 SV is placed on flat surfaces. This makes it easier to handle the helmet for cleaning or maintenance, but also allows the elements inside the helmet to be insulated from the surface, protecting them from chafing and, above all, enhancing hygiene when using the helmet
• Airflow Channel System – Through fluid dynamics analysis, air channels have been designed to minimize air resistance and boost internal ventilation flow, reducing temperature and moisture inside the helmet
• Reduced Aero Drag Design – An aerodynamic design studied by the MT Helmets engineering team to reduce aerodynamic resistance as much as possible
• Racing Spoiler
   
• ECE R-22.06 (EU) Approved. This helmet exceeds the highest safety standards and has passed, since its launch, the new ECE 22.06 test required for the European market
• Micrometric Double Toothed Closure – Redesigned micrometric retention system to keep the helmet always fastened and secured. The MT Helmets engineering department has developed this system to ensure that the fastener is locked by at least two points, ensuring that the system is secured. This locking system, optimal for sport-touring models, offers the best balance between wearing comfort and safety
• 1650 (+/-50) grams, its weight is well distributed
   
• Quick Visor Swap System – A system designed in-house by the MT Helmets Engineering team. The first helmet to feature this technology. This system, which has been patented by MT Helmets, allows the rider to attach/detach the visor really quickly and comfortably without having to take the helmet off
• Extended Vision Area – The extended vision area allows riders to have better visibility of their surroundings, increasing ride comfort and improving the riding experience and safety on the bike
• Extended Sun Visor Protection – Retractable sun visor system offering extended protection, preventing distortion due to changes in light conditions. It comes with a mechanism that can be quickly and comfortably used with one hand. It is also detachable for easy cleaning and maintenance.
• Pinlock 100% Max Vision – The Thunder 4 SV features space for a Pinlock 100% Max Vision insert
   
• The interior pads have been developed specifically for each helmet size to fit all head sizes in an optimal way
• The materials used for the manufacture of these elements combine different fabrics that favor ventilation, exhaust moisture, and drying quickly
• Removable and washable liners that allow you to keep your helmet clean and fresh
• Emergency Release System – Quick release system for side pads for removing the helmet in case of an accident. This system prevents possible damage during a helmet removal maneuver
• Universal Intercom Cage – This helmet has been developed taking into account the needs arising from the incorporation of an intercom system and has specific spaces to fit an intercom communication system

The most affordable helmet on the market, with the highest safety homologation. The MT Thunder 4 SV represents all the drive and technological evolution of MT Helmets.

The arrival of the new ECE 22.06 certification has made MT Helmets a specialist in safety homologations and sends a very clear message to the industry: now safety on a bike is within everyone’s reach.

Features:

• HIRP Shell (High Impact Resistant Polymer) for excellent impact response. 2 Shell Sizes
• Three-Point Protector System – The base of this helmet has a three-point support system that has been developed to provide good stability when the Thunder 4 SV is placed on flat surfaces. This makes it easier to handle the helmet for cleaning or maintenance, but also allows the elements inside the helmet to be insulated from the surface, protecting them from chafing and, above all, enhancing hygiene when using the helmet
• Airflow Channel System – Through fluid dynamics analysis, air channels have been designed to minimize air resistance and boost internal ventilation flow, reducing temperature and moisture inside the helmet
• Reduced Aero Drag Design – An aerodynamic design studied by the MT Helmets engineering team to reduce aerodynamic resistance as much as possible
• Racing Spoiler
   
• ECE R-22.06 (EU) Approved. This helmet exceeds the highest safety standards and has passed, since its launch, the new ECE 22.06 test required for the European market
• Micrometric Double Toothed Closure – Redesigned micrometric retention system to keep the helmet always fastened and secured. The MT Helmets engineering department has developed this system to ensure that the fastener is locked by at least two points, ensuring that the system is secured. This locking system, optimal for sport-touring models, offers the best balance between wearing comfort and safety
• 1650 (+/-50) grams, its weight is well distributed
   
• Quick Visor Swap System – A system designed in-house by the MT Helmets Engineering team. The first helmet to feature this technology. This system, which has been patented by MT Helmets, allows the rider to attach/detach the visor really quickly and comfortably without having to take the helmet off
• Extended Vision Area – The extended vision area allows riders to have better visibility of their surroundings, increasing ride comfort and improving the riding experience and safety on the bike
• Extended Sun Visor Protection – Retractable sun visor system offering extended protection, preventing distortion due to changes in light conditions. It comes with a mechanism that can be quickly and comfortably used with one hand. It is also detachable for easy cleaning and maintenance.
• Pinlock 100% Max Vision – The Thunder 4 SV features space for a Pinlock 100% Max Vision insert
   
• The interior pads have been developed specifically for each helmet size to fit all head sizes in an optimal way
• The materials used for the manufacture of these elements combine different fabrics that favor ventilation, exhaust moisture, and drying quickly
• Removable and washable liners that allow you to keep your helmet clean and fresh
• Emergency Release System – Quick release system for side pads for removing the helmet in case of an accident. This system prevents possible damage during a helmet removal maneuver
• Universal Intercom Cage – This helmet has been developed taking into account the needs arising from the incorporation of an intercom system and has specific spaces to fit an intercom communication system

The most affordable helmet on the market, with the highest safety homologation. The MT Thunder 4 SV represents all the drive and technological evolution of MT Helmets.

The arrival of the new ECE 22.06 certification has made MT Helmets a specialist in safety homologations and sends a very clear message to the industry: now safety on a bike is within everyone’s reach.

Features:

• HIRP Shell (High Impact Resistant Polymer) for excellent impact response. 2 Shell Sizes
• Three-Point Protector System – The base of this helmet has a three-point support system that has been developed to provide good stability when the Thunder 4 SV is placed on flat surfaces. This makes it easier to handle the helmet for cleaning or maintenance, but also allows the elements inside the helmet to be insulated from the surface, protecting them from chafing and, above all, enhancing hygiene when using the helmet
• Airflow Channel System – Through fluid dynamics analysis, air channels have been designed to minimize air resistance and boost internal ventilation flow, reducing temperature and moisture inside the helmet
• Reduced Aero Drag Design – An aerodynamic design studied by the MT Helmets engineering team to reduce aerodynamic resistance as much as possible
• Racing Spoiler
   
• ECE R-22.06 (EU) Approved. This helmet exceeds the highest safety standards and has passed, since its launch, the new ECE 22.06 test required for the European market
• Micrometric Double Toothed Closure – Redesigned micrometric retention system to keep the helmet always fastened and secured. The MT Helmets engineering department has developed this system to ensure that the fastener is locked by at least two points, ensuring that the system is secured. This locking system, optimal for sport-touring models, offers the best balance between wearing comfort and safety
• 1650 (+/-50) grams, its weight is well distributed
   
• Quick Visor Swap System – A system designed in-house by the MT Helmets Engineering team. The first helmet to feature this technology. This system, which has been patented by MT Helmets, allows the rider to attach/detach the visor really quickly and comfortably without having to take the helmet off
• Extended Vision Area – The extended vision area allows riders to have better visibility of their surroundings, increasing ride comfort and improving the riding experience and safety on the bike
• Extended Sun Visor Protection – Retractable sun visor system offering extended protection, preventing distortion due to changes in light conditions. It comes with a mechanism that can be quickly and comfortably used with one hand. It is also detachable for easy cleaning and maintenance.
• Pinlock 100% Max Vision – The Thunder 4 SV features space for a Pinlock 100% Max Vision insert
   
• The interior pads have been developed specifically for each helmet size to fit all head sizes in an optimal way
• The materials used for the manufacture of these elements combine different fabrics that favor ventilation, exhaust moisture, and drying quickly
• Removable and washable liners that allow you to keep your helmet clean and fresh
• Emergency Release System – Quick release system for side pads for removing the helmet in case of an accident. This system prevents possible damage during a helmet removal maneuver
• Universal Intercom Cage – This helmet has been developed taking into account the needs arising from the incorporation of an intercom system and has specific spaces to fit an intercom communication system