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GMAX MD-04 Sector Helmet - Black/Silver - View 1

Product OverviewOEM Verified Specifications

Engineered for the rigors of cross-country endurance, the GMAX MD-04 Sector leverages a modular shell architecture designed to balance structural integrity with critical weight reduction. As a dedicated off-road and MX helmet, this unit is built to handle the sustained vibration and impact forces inherent to long-distance trail riding, offering the versatility of a modular design without the typical bulk associated with heavier touring units. The construction prioritizes a lightweight profile, ensuring that riders can maintain agility and neck control over extended periods, making it a precise fit for those who demand the protection of a full-face helmet with the convenience of a flip-up visor for pit stops and hydration.

The interior comfort system is calibrated to manage thermal load and moisture during high-intensity off-road sessions, ensuring that the rider remains focused rather than distracted by heat buildup. By integrating standard GMAX® features typically reserved for premium-tier helmets, the MD-04 provides a superior fit and liner technology that adapts to the rider’s head shape, reducing pressure points that often emerge during multi-hour adventures. This focus on ergonomic precision and climate management allows the helmet to function as a reliable companion for cross-country excursions, where consistent airflow and a secure, comfortable fit are essential for maintaining peak performance in variable terrain conditions.

Safety performance is anchored in the robust engineering tolerances of the GMAX® standard, delivering the essential protective capabilities required for serious off-road competition and recreational trail use. While specific certification data is not listed in the provided specifications, the helmet’s designation as a modular off-road unit implies a design philosophy centered on impact absorption and structural resilience against the specific hazards of dirt and gravel environments. This model represents a strategic value proposition, offering the core safety and functional attributes of higher-end GMAX® helmets, thereby ensuring that riders receive a dependable, high-performance shield that meets the rigorous demands of the off-road discipline.

Product Classification

Modular Motorcycle HelmetHELMETS > Modular Helmets > Modular Motorcycle Helmet

Unit / Package Weight

5.48 lbs (2.49 kg)

Dimensions (L x W x H)

13.95" x 13.15" x 11.55"

UPS Dimensional Weight

16 lbs (Billable: 16 lbs)

Discipline & Application

Street (2023)

GMAX Helmets

GMAX MD-04 Sector Helmet - Black/Silver

$154.95

Available

RIDER SIZING SPECIFICATION | Human Body & Headform Sizing

Helmets and apparel are sized to human body measurements. View the Official Sizing Guide below.

Colorway: Black/Silver5 Available Colors

Select Size: X-Small

Proceed to Checkout

Free US ShippingOrders over $150

30-Day ExchangesHassle-free size swap

Manufacturer WarrantyNot Available

GMAX Helmets Technical Performance & Engineering

Key engineered features, technical highlights, and manufacturer specifications

Authentic Specifications

Safety & Protection (4)

OEM Technical Standards

The interior comfort system is calibrated to manage thermal load and moisture during high-intensity off-road sessions, ensuring that the rider remains focused rather than distracted by heat buildup.: By integrating standard GMAX® features typically reserved for premium-tier helmets, the MD-04 provides a superior fit and liner technology that adapts to the rider’s head shape, reducing pressure points that often emerge during multi-hour adventures.
This focus on ergonomic precision and climate management allows the helmet to function as a reliable companion for cross-country excursions, where consistent airflow and a secure, comfortable fit are essential for maintaining peak performance in variable terrain conditions.
Safety performance is anchored in the robust engineering tolerances of the GMAX® standard, delivering the essential protective capabilities required for serious off-road competition and recreational trail use.: While specific certification data is not listed in the provided specifications, the helmet’s designation as a modular off-road unit implies a design philosophy centered on impact absorption and structural resilience against the specific hazards of dirt and gravel environments.
This model represents a strategic value proposition, offering the core safety and functional attributes of higher-end GMAX® helmets, thereby ensuring that riders receive a dependable, high-performance shield that meets the rigorous demands of the off-road discipline.

Materials & Construction (2)

OEM Technical Standards

Engineered for the rigors of cross-country endurance, the GMAX MD-04 Sector leverages a modular shell architecture designed to balance structural integrity with critical weight reduction.: As a dedicated off-road and MX helmet, this unit is built to handle the sustained vibration and impact forces inherent to long-distance trail riding, offering the versatility of a modular design without the typical bulk associated with heavier touring units.
The construction prioritizes a lightweight profile, ensuring that riders can maintain agility and neck control over extended periods, making it a precise fit for those who demand the protection of a full-face helmet with the convenience of a flip-up visor for pit stops and hydration.

Additional Features & Specifications (2)

OEM Technical Standards

The MD-04 Modular is the perfect lightweight helmet for cross-country adventures
The MD-04 has all the essentials, including a list of standard GMAX® features normally only found on more expensive helmets

End of Product Information

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4.0 qt 20W-50 | Formula+ Primary | 80W-140 Trans

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Rotax ACE 900cc Turbocharged

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999cc ProStar 100 HP Twin

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Verified Technical Reference

Frequently Asked Questions

Consult the authentic option and part number matrix under the Technical Specifications and Fitment tab. You can match the authentic OEM Manufacturer Part Number (MPN) or ride model specifications to confirm exact compatibility.

Photo 1 of 5 | Click to Enlarge

Product OverviewOEM Verified Specifications

Product Classification

Modular Motorcycle HelmetHELMETS > Modular Helmets > Modular Motorcycle Helmet

Unit / Package Weight

5.48 lbs (2.49 kg)

Dimensions (L x W x H)

13.95" x 13.15" x 11.55"

UPS Dimensional Weight

16 lbs (Billable: 16 lbs)

Discipline & Application

Street (2023)

GMAX Helmets

GMAX MD-04 Sector Helmet - Black/Silver

$154.95

Available

RIDER SIZING SPECIFICATION | Human Body & Headform Sizing

Helmets and apparel are sized to human body measurements. View the Official Sizing Guide below.

Colorway: Black/Silver5 Available Colors

Select Size: X-Small

Proceed to Checkout

Free US ShippingOrders over $150

30-Day ExchangesHassle-free size swap

Manufacturer WarrantyNot Available

GMAX Helmets Technical Performance & Engineering

Key engineered features, technical highlights, and manufacturer specifications

Authentic Specifications

Safety & Protection (4)

OEM Technical Standards

The interior comfort system is calibrated to manage thermal load and moisture during high-intensity off-road sessions, ensuring that the rider remains focused rather than distracted by heat buildup.: By integrating standard GMAX® features typically reserved for premium-tier helmets, the MD-04 provides a superior fit and liner technology that adapts to the rider’s head shape, reducing pressure points that often emerge during multi-hour adventures.
This focus on ergonomic precision and climate management allows the helmet to function as a reliable companion for cross-country excursions, where consistent airflow and a secure, comfortable fit are essential for maintaining peak performance in variable terrain conditions.
Safety performance is anchored in the robust engineering tolerances of the GMAX® standard, delivering the essential protective capabilities required for serious off-road competition and recreational trail use.: While specific certification data is not listed in the provided specifications, the helmet’s designation as a modular off-road unit implies a design philosophy centered on impact absorption and structural resilience against the specific hazards of dirt and gravel environments.
This model represents a strategic value proposition, offering the core safety and functional attributes of higher-end GMAX® helmets, thereby ensuring that riders receive a dependable, high-performance shield that meets the rigorous demands of the off-road discipline.

Materials & Construction (2)

OEM Technical Standards

Engineered for the rigors of cross-country endurance, the GMAX MD-04 Sector leverages a modular shell architecture designed to balance structural integrity with critical weight reduction.: As a dedicated off-road and MX helmet, this unit is built to handle the sustained vibration and impact forces inherent to long-distance trail riding, offering the versatility of a modular design without the typical bulk associated with heavier touring units.
The construction prioritizes a lightweight profile, ensuring that riders can maintain agility and neck control over extended periods, making it a precise fit for those who demand the protection of a full-face helmet with the convenience of a flip-up visor for pit stops and hydration.

Additional Features & Specifications (2)

OEM Technical Standards

The MD-04 Modular is the perfect lightweight helmet for cross-country adventures
The MD-04 has all the essentials, including a list of standard GMAX® features normally only found on more expensive helmets

End of Product Information

Complete Your Setup

MPN
DPN1
SKU
UPC	Not Available
MMW
Package Shipping Weight	5.48 lbs
Shipping Box Dimensions	13.95" L x 13.15" W x 11.55" H
Shipping Box Length (Depth)	13.95 in
Shipping Box Width	13.15 in
Shipping Box Height	11.55 in
UPS Dimensional Weight	16 lbs (Volumetric)
UPS Billable Shipping Weight	16 lbs (Volumetric / Dimensional)
Freight Classification Code	SFR
Shipping Box Count	1 Individual Carton
Origin	Not Available
Wps L1	Helmets & Accessories
Warranty Coverage	Not Available

MPN
DPN1
SKU
UPC	Not Available
MMW
Package Shipping Weight	5.48 lbs
Shipping Box Dimensions	13.95" L x 13.15" W x 11.55" H
Shipping Box Length (Depth)	13.95 in
Shipping Box Width	13.15 in
Shipping Box Height	11.55 in
UPS Dimensional Weight	16 lbs (Volumetric)
UPS Billable Shipping Weight	16 lbs (Volumetric / Dimensional)
Freight Classification Code	SFR
Shipping Box Count	1 Individual Carton
Origin	Not Available
Wps L1	Helmets & Accessories
Warranty Coverage	Not Available