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HJC i31 Helmet

The HJC i31 Helmet offers a perfect blend of safety, comfort and convenience for riders. Its advanced polycarbonate composite shell ensures lightweight durability, while the aerodynamic 3D shield design enhances stability at speed. Equipped with a Pinlock ready HJ-43 face shield and an integrated dark smoke HJ-V12 sun shield, the i31 helmet provides clear visibility and adaptability to changing light conditions. The ACS Advanced Channeling Ventilation System features one intake and two exhaust vents ensuring optimal airflow to keep heads cool. Inside, the MultiCool moisture-wicking, quick-dry interior offers superior comfort, with grooves designed for eyeglass wearers. The Rapidfire shield replacement system and a secure nylon strap retention system add practicality and ease of use. DOT-certified, the i31 delivers reliable performance for every ride.

Features:

  • Advanced polycarbonate composite shell
  • Pinlock Ready HJ-43 face shield
  • ACS Advanced Channeling Ventilation System
  • 1 intake and 2 exhaust vents
  • HJ-V12 integrated dark smoke sun shield
  • MultiCool moisture wicking and quick dry interior
  • Aerodynamic 3D shield design
  • Rapidfire shield replacement system
  • Nylon strap retention system
  • Grooves for eyeglass wearers
  • DOT certified
Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style Black / XS RevZilla Item #10475118 Store Sku365313 MFR. Product #454897 AvailabilityIn Stock: Ships within 24 hours
Product Style Black / SM RevZilla Item #10475119 Store Sku365314 MFR. Product #454898 AvailabilityIn Stock: Ships within 24 hours
Product Style Black / MD RevZilla Item #10475120 Store Sku365315 MFR. Product #454899 AvailabilityIn Stock: Ships within 24 hours
Product Style Black / LG RevZilla Item #10475121 Store Sku365316 MFR. Product #454900 AvailabilityIn Stock: Ships within 24 hours
Product Style Black / XL RevZilla Item #10475122 Store Sku365317 MFR. Product #454901 AvailabilityIn Stock: Ships within 24 hours
Product Style Black / 2XL RevZilla Item #10475123 Store Sku365318 MFR. Product #454902 AvailabilityIn Stock: Ships within 24 hours
Product Style Matte Black / XS RevZilla Item #10475136 Store Sku365331 MFR. Product #421131 AvailabilityIn Stock: Ships within 24 hours
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Product Style XL / Titanium RevZilla Item #10475146 Store Sku365341 MFR. Product #439383 AvailabilityIn Stock: Ships within 24 hours
Product Style 2XL / Titanium RevZilla Item #10475147 Store Sku365342 MFR. Product #439384 AvailabilityIn Stock: Ships within 24 hours

HJC i20 / i31 / i71 / i90 / i100 Helmet Sizing

Size Head (cm)
XS 54-55
SM 55-56
MD 57-58
LG 58-59
XL 60-61
2XL 62-63
3XL 64-65
4XL 66-67
5XL 68-69

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
38 Customer Reviews
38 4/5
10 Questions & 18 Answers
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