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Leatt GPX 5.5 V.04 Helmet

2015 Model DOT ; ECE 22-05
Was $449.00
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Leatt GPX 5.5 V.04 Helmet

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Ground breaking head and brain protection from Leatt. This race ready Composite off-road, light weight and super ventilated helmet is equipped with 360 Degree Turbine concussion and brain rotation safety technology that takes protection to a whole new level.


  • Super lightweight Composite off-road head and brain protection
  • Composite matrix reduced outer volume shell in three sizes
  • 360 Degree Turbine technology improves multiple impact protection
  • 360 Degree Turbine technology helps by reducing up to 30% of head impact at concussion level
  • 360 Degree Turbine technology also helps reduce up to 40% of rotational acceleration to head and brain
  • Reduced outer shell volume for reduction in neck forces and rotational brain acceleration
  • A smaller helmet shell reduces forces transferred to the neck
  • This 10% smaller helmet shell transfers up to 20% less rotational forces to the head and brain
  • 3D in-molded V-Foam is multi density V-shaped impact foam molded to the outer shell
  • The V-foam significantly reduces G-forces transferred to the head and brain
  • Increased absorption, slimmer and a stiffer structure than a normal helmet foam
  • Optimized neck brace compatibility is a especially designed helmet feature that is shaped to take full advantage of the Leatt neck brace design
  • Rear hyper-extension impact platform with neck brace optimized shape
  • Rear clearance cut for optimal head range of movement
  • Maximized ventilation system is effective even at very low speeds
  • Moisture wicking, breathable, anti-microbial, and washable liner
  • Low friction cheek pads for emergency removal
  • Optimized for off-road racing
  • Hydration ready with optional fitting for your hydration system
  • Visor with break away function for rotational reduction in a crash
  • Certified and tested: ECE2205/DOT, ACU Gold, AS/NZS 1698-2006

Leatt GPX Adult Helmets

Head Circumference (in) 20-3/4 - 21-1/4 21-5/8 - 22 22-1/2 - 22-3/4 23-1/4 - 23-5/8 24 - 24-1/2 24-3/4 - 25-1/4
Head Circumference (cm) 53 - 54 55 - 56 57 - 58 59 - 60 61 - 62 63 - 64

General Sizing Information

If you are unsure about your size, compare your body measurements to the charts provided to determine the correct fit. These charts will give you a good idea of the size to order, but be sure to read special sizing information that may accompany an item description. Some merchandise dimensions may vary from the averages charted here.


Age & Gender
GPX 5.5
Model Name for Gear
GPX 5.5
Safety Certification
DOT ; ECE 22-05
Model Description
2015 Model

Item Numbers

Details Item Number Availability Store Pickup
Details:Black/Red/White  S Item #3007-101550-0131 Availability:In stock: Ready to shipStore Pickup:Available


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