The GPA Speed Air 4S helmet stands for four layers of protection and it is a part of the REDLINE Collection. The outer shell is designed to lessen the first round of impact, the second further reduces the impact energy. The main shell is reinforced in fiberglass, provides rigidity and additional layer of protection. The EPS Foam liner decelerates the shock, lessening the impact.

Color: Black/Red
Size: 7 ONLY
  • Superior venting for air circulation
  • Leather harness
  • The soft sweat absorbing inside lining is removable and may be washed by hand.
  • Safety certifications ASTM F 1163-04a
  • Made in France
  • FREE SHIPPING in Continental USA.
Helmet Sizing Guide - Please measure head at widest part (with hair up, if that is how helmet will be worn). Make sure the tape is snug. Please measure in centimeters for the best fit.
Helmet Sizes 6 5/8 6 3/4 6 7/8 7 7 1/8 7 1/4 7 3/8 7 1/2 7 5/8  
Centimeters 54 55 56 57 58 59 60 61 62



  • Model: H150

Available Options

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