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Product Details

Leatt GPX 5.5 V11 Helmet

The Leatt GPX 5.5 Helmet redefines the traditional helmet with its patented 360 degree Turbine Technology which significantly reduces rotational acceleration and decreases head impact at concussion level.

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 integration with Leatt neck braces

  • 360 degree helmet and neck brace match
  • Rear clearance cut for riding
  • Rear hyperextension impact platform

Other Features:

  • 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 with 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
Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style XS / Grey/Teal RevZilla Item #1240530 Store Sku MFR. Product #1018100130 AvailabilityCloseout: This product is no longer available
Product Style SM / Grey/Teal RevZilla Item #1240531 Store Sku MFR. Product #1018100131 AvailabilityCloseout: This product is no longer available
Product Style MD / Grey/Teal RevZilla Item #1240532 Store Sku MFR. Product #1018100132 AvailabilityCloseout: This product is no longer available
Product Style LG / Grey/Teal RevZilla Item #1240533 Store Sku MFR. Product #1018100133 AvailabilityCloseout: This product is no longer available
Product Style XL / Grey/Teal RevZilla Item #1240534 Store Sku MFR. Product #1018100134 AvailabilityCloseout: This product is no longer available
Product Style 2XL / Grey/Teal RevZilla Item #1240535 Store Sku MFR. Product #1018100135 AvailabilityCloseout: This product is no longer available

Leatt Helmet Sizing

Size Head (cm)
XS 53 - 54
SM 55 - 56
MD 57 - 58
LG 59 - 60
XL 61 - 62
2XL 63 - 64

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.


How to Measure

  • H Head
    Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
Product Description
Part Numbers
Sizing & Fit
6 Customer Reviews for All Models
6 4.5/5
3 Questions & 0 Answers for All Models
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