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Leatt DBX 5.0 V12 Full Face Composite Helmet for Mountain Bike, BMX

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our part num: B-1015500234

Distinguishing Features

  • 360° Turbine Technology - Helps reduce rotational forces
  • Reduced Outer Shell Volume - Reduced outer shell volume for reduction in Neck forces & Rotational brain acceleration
  • Neck Brace Compatibility - Fits like a glove with Leatt DBX Neck Braces


  • Outer Material - composite matrix shell, lightweight and well-ventilated protection
  • Inner Liner - 3D in-molded multi-density V-Foam, ventilation and comfort
  • Adjustable Visor - toolless and blocks sun/branches, adjustable with center dial
  • Slip Plane Technology - Leatt 360° Turbine Technology, reduces up to 30% of head impact at concussion level and up to 40% of rotational acceleration to head and brain
  • Removable Liner - snap in antimicrobial moisture wicking liner, removable for washing
  • Removable Cheek Pads - pull off snap cheek pads, removable for washing quick tab removable in case of emergency
  • Fit System - no
  • Audio Compatibility - no 
  • Ventilation - 22 vent ports (16 helmet, 6 chin bar), added air circulation
  • Buckle - d-ring snap clasp, increased adjustability for best fit
  • Camera Mount - no
  • Hydration Integration - hidr8 system, compatible with hydration pack port
  • Goggle Strap Guide - countered side cutouts, reduces goggle strap pressure
  • Neck Brace Compatability - full face helmet allows for integration with Leatt neck braces, added neck and spine protection
  • Safety - meets CPSC 1203, CE EN 1078, and ASTM F-1952 safety standards
  • Weight - 990g (2.18lbs)



Leatt DBX 5.0 V12 Full Face Composite Helmet Has Revolutionary 360 Turbine Technology

Leatt is known for innovation. They took the Mountain Biking and BMX world by storm with their revolutionary DBX neck braces, but in the last several years, they have moved into different realms of protection. Leatt's neck braces need a full face helmet to work properly, so Leatt decided no one can do better what they can do themselves. 

The Leatt DBX 5.0 V12 Full Face Helmet is the combination of innovation and research. Featuring a reduced outer shell made of composite matrix and a 3D In-Molded V-Foam Multi-Density V-shaped impact foam molded to the outer shell that significantly reduces G-forces transferred to the head & brain. V-Foam has increased absorption and slimmer/stiffer structure than a regular helmet foam. 

Leatt has created and tested a new technology that will revolutionize brain protection. 360° Turbine Technology has been tested to reduce head impact at concussion level up to 30% while also reducing rotation forces to the head and brain by up to 40%. 360° Turbine Technology improves multiple-impact protection and consists of 11 small blue circles made of Armourgel within the helmet's shell. Upon impact, they can help to cushion and protect the skull/brain against traumatic forces. 

The Leatt DBX 5.0 V12 has excellent ventilation with 22 wide air ports including 6 in the chin bar. It also has a built-in hydration system so you can run your hydration pack tubing right into the helmet and drink while you ride. 

Like every Leatt product, the 5.0 V12 is made to work seamlessly with Leatt's DBX neck braces. The specially designed helmet features a shape to take full advantage of the Leatt neck brace design including a rear hyperextension impact platform with neck brace optimized shape. No full face helmet goes better with a neck brace than Leatt's own. 

    About Leatt

    Sometimes it takes a tragedy to create a change. Such was the case in South Africa in 2001 when Dr. Chris Leatt, a medical doctor and motorcycle rider, went to a racetrack with his son who himself had just begun to ride. There, Dr. Leatt witnessed the death of another rider, Alan Selby, from suspected neck injuries. Dr. Leatt was so shaken by the incident that he made it his mission to develop a device that would go a substantial way toward preventing this type of fatal injury in the future. After three years of research, development, and testing, Dr. Leatt introduced his first Leatt-Brace. However, it would be another two years before the Leatt-Brace would make it to market on a large scale. Today, Leatt-Brace is a worldwide leader in neck protection for extreme sports. Dr. Leatt likes to say the Leatt Brace is "a helmet for your neck". Designers and engineers in the Leatt laboratory in South Africa have expanded their reach to high-technology protective armor that meet varying needs of downhill mountain bikers, BMX bikers, and skiers and snowboarders.


    Leatt Size Chart

    Leatt Neck Brace, Body Armor, and Pads Size Charts

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    Leatt Neck Brace Size Charts - Look for the Specific Brace Model Below

    Leatt DBX 5.5  and DBX 5.5 Jr Neck Braces

    Neck Brace Size Chest Circumference
    Junior 29.5-32.5in
    Adult S/M 32.5-37.0in
    Adult L/XL 37.0-49.5in


    Leatt DBX 4.5 Neck Brace

    Neck Brace Size Chest Circumference
    Adult S/M 31.0-37.0in
    Adult L/XL 37.0-45.0in


    Leatt DBX Comp 4 and DBX Ride 4 Neck Braces

    Neck Brace Size Chest Circumference
    Adult S/M 26.0-37.0in
    Adult L/XL 34.0-43.0in


    Leatt Upper Body Armor Size Charts

    Leatt 3DF Adult Size Upper Body Armor

    Size Chest Circumference
    Small/Medium 34-38in
    Large/Extra Large 40-44in
    XXL 44-48in


    Leatt 3DF Youth Size Upper Body Armor

    Size Height
    Junior Small/Medium 4'5"-4'9" Tall
    Junior Large/Extra Large 4'9"-5'3" Tall


    Leatt 3DF Knee Guards Size Charts

    Measure your knee circumference, with your leg extended out straight.

    How to Measure Your Knee for Leatt 3DF Knee Pads

    Leatt 3DF Adult Size Knee Guards

    Size Knee Circumference
    Small/Medium 31-41cm
    Large/Extra Large 41-53cm
    XXL 53-58cm


    Leatt 3DF Youth Size Knee Guards

    Size Knee Circumference
    Junior 4'5"-4'9" Tall
    Kids 4'9"-5'3" Tall


    Leatt 3DF Elbow Guards Size Charts

    Measure your elbow circumference, with your arm extended.

    How to Measure Your Elbows for Leatt 3DF Elbow Guards

    Leatt 3DF Adult Size Elbow Guards

    Size Elbow Circumference
    Small/Medium 22-28cm
    Large/Extra Large 28-35cm
    XXL 35-41cm


    Leatt 3DF Youth Size Elbow Guards

    Size Elbow Circumference
    Junior 4'5"-4'9" Tall
    Kids 4'9"-5'3" Tall


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