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Leatt - GPX 5.5 Composite Solid Helmet

Product Code: leatt-gpx-5-5-composite-solid-helmet
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Leatt - GPX 5.5 Composite Solid Helmet

 Leatt helmets

Dr. Leatt filed his first neck-brace related patent in 2003 and went on to found the Leatt Corporation in 2007. In less than a decade, Leatt has become one of the leaders in body armor and protective motorsports gear. Since the release of the widely acclaimed Leatt-Brace, Leatt has steadily increased the number of products and product lines.  Leatt body armor is some of the most innovative and thoughtful protective gear on the market. Their neck braces, chest protectors and knee braces redefine safety and performance. Leatt uses their groundbreaking engineering team to develop the best dirt bike helmets on the market. The unique design of this new line of Leatt dirt bike helmets helps to differentiate Leatt from other well established dirt bike helmet brands.

The Leatt 6.5 Carbon V16 Helmet is one of the best dirt bike helmets in the world. The helmet has been engineered, using patented technology, to be one of the safest helmets on the market. The helmet shell is comprised of a strong carbon fiber weave. Constructing a helmet with a carbon fiber shell allows the size of the helmet shell to be reduced, due to the increased durability and more aerodynamic. This tradeoff provides even more protection and less bulk for the rider. The Leatt 6.5 Carbon Helmet has the maximum amount of ventilation, while still maintaining its structural integrity. The ventilation works even at low speeds.

The 5.5 Composite V15 is not an entirely new Leatt dirt bike helmet. The 5.5 Composite originally came in a grey scale color pallet. Leatt has introduced seven new colors that help make the line stand out. They have also added the Leatt logo across the helmet which creates a new aesthetic for the 5.5 Composite. This helmet is not made with the carbon fiber material which makes it much lighter than the 6.5 carbon line. It also does not sport as much ventilation. The dual liner system is easily removable with its snap out design, so it can be washed.

Both Leatt dirt bike helmet lines use a 360° degree Turbine technology. This technology helps to reduce concussions and other injuries from hard impacts to the head. These helmets utilize Armourgel turbines, placed in multiple points along the helmet, to mitigate impacts across the exterior of the helmet. Armourgel is a material that hardens upon impact. The harder the impact, the harder the gel becomes. These turbines absorb the impact which reduces impact stress, but also helps decelerate the riders head rotation speed to avoid brain damage. Both models are engineered for maximum compatibility with the neck brace, making these helmets the best dirt bike helmets to wear with a neck brace.


BTO Sports offers all of newest products in motorsports, like the brand new Leatt line of helmets. We offer all of the latest Leatt dirt bike helmets, as well as great discounted offers on many dirt bike helmet brands! Additionally, we carry a wide variety of Leatt body armor and protective motorsports gear.

Leatt has done it again with their best motocross helmets the GPX 5.5 composite and the GPX 6.5 carbon. Yes it is their first line of motocross helmets but don’t let that deter you from their helmet line. Leatt has made sure to do everything in their power to make sure they compete with the best motocross helmets out there. These helmets do not come at an entry level price but provide you with 360 turbine concussion and brain rotation safety technology which takes helmet protection to a new level. This motocross helmet also has great ventilation even at the lower, slower speeds. The helmet is ECE, DOT and ACU Gold approved. These motocross helmets from Leatt are the best motocross helmets they could come up with and trust us, you will not be let down by the quality, comfortably, and weight of this beauty.


  • Quattro Force Control
  • Composite matrix 3 sizes shell ECE+DOT
  • 3D in-molded multi density V-Foam Plus
  • 360° TURBINE multiple low energy impact
  • 360° TURBINE rotational acceleration
  • Optimized to work with the Leatt Neck Braces
  • 360 degree helmet and neck brace match
  • Rear clearance cut for riding
  • Rear hyperextension impact platform
  • Reduced outer shell volume for reduction in neck forces and rotational brain acceleration
  • Optimized weight. Very light and great safety
  • Maximum ventilation with over 190 honeycomb vent holes and 11 large vent ports
  • Hydration ready optional internal hands free kit available (sold separately)
  • Zero friction removable safety cheek pads
  • Anti-microbial high evaporating snap out dual liner system wth ergo fit foam layer and MoistureCool Tech layer
  • Visor with break away function
  • LEATT Race Ready Design – prepared for ejection helmet removal system
  • Certified ECE2205/DOT, ACU Gold, AS/NZS 1698-2006
  • Estimated weight Size LG 1,250g +/- 50g 

Leatt Helmet Sizing Chart