HJC V 31 Jet Helmet - flame mc5
HJC V 31 Jet Helmet - flame mc5
(Product No.: BB-107H48-0.75)
HJC V 31 Jet Helmet - flame mc5

HJC V 31 Jet Helmet - flame mc5

250.00 CHF UVP 289.00 CHF

incl. 8.1% tax excl. Shipping costs

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Description
V31 jet helmet (ECE 22.06 standard)
 
The V31 is a retro-style helmet with a modern, lightweight fiberglass composite shell.
 
It features a sun visor (99% UV protection) that can be locked in three positions and has an anti-scratch coating.
 
To enhance the refined vintage feel, the V31 uses leather and suede for its lining, among other materials, and is also equipped with a headband holder for glasses. The interior padding is removable, washable and suitable for spectacle wearers.
 
Earphone slots are provided for the installation of a communication system.
 
Double D-ring closure, infinitely adjustable.
 A helmet peak (sold separately) can be attached to the front using the three snap fasteners.
 


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HJC Size Chart

HJC Size Chart

HJC offers motorcycle helmets and bicycle helmets with partly different size ranges. The categories are therefore listed separately. Individual models may differ from the general reference chart; product-specific sizing always takes priority.

Motorcycle helmets – general HJC reference chart

Measure the head circumference with a flexible measuring tape around the head. For motorcycle helmets, HJC recommends measuring approximately 2.5 cm above the eyebrows.

Size Head circumference (cm) Hat size Head circumference (inches)
3XS* 50–51 6 1/4 – 6 3/8 19 3/4 – 20 1/8
2XS 52–53 6 1/2 – 6 5/8 20 1/2 – 20 7/8
XS 54–55 6 3/4 – 6 7/8 21 1/4 – 21 5/8
S 55–56 6 7/8 – 7 21 5/8 – 22
M 57–58 7 1/8 – 7 1/4 22 3/8 – 22 7/8
L 58–59 7 1/4 – 7 3/8 22 7/8 – 23 1/4
XL 60–61 7 1/2 – 7 5/8 23 5/8 – 24
2XL 62–63 7 3/4 – 7 7/8 24 3/8 – 24 3/4
3XL 64–65 8 – 8 1/8 25 1/8 – 25 1/2
4XL 66–67 8 1/4 – 8 3/8 26 – 26 3/8
5XL 68–69 8 1/2 – 8 5/8 26 3/4 – 27 1/8

* According to HJC, 3XS is available for the C10 as a youth size.

HJC Y10 – youth sizes

Size Head circumference (cm)
YS 48–49
YM 50–51
YL 52–53

Bicycle helmets – model-specific sizing

HJC Sports size ranges vary between certain model generations, especially for size L. The official model-specific measurements are therefore listed separately.

Model S – head circumference (cm) M – head circumference (cm) L – head circumference (cm)
Atara 51–56 55–59 58–61
Bellus 51–56 55–59 58–61
Bellus 2 51–56 55–59 58–63
Calido 51–56 55–59 58–63
Coban 51–56 55–59 58–63
Crosser 51–56 55–59 58–63
Furion 2.0 51–56 55–59 58–61
Furion 3 51–56 55–59 58–63
Gleo (Kinder / Kids) 49–55 – –
Ibex 2.0 51–56 55–59 58–61
Ibex 3 51–56 55–59 58–63
Route 51–56 55–59 58–63
Valeco 51–56 55–59 58–63
Valeco 2 51–56 55–59 58–61

Safety note: A size chart is a reference only. A helmet must fit firmly and evenly around the head, must not move out of position and should not create problematic pressure points. HJC warns that wearing the wrong helmet size can increase the risk of injury. Always try the helmet on and follow the product-specific fitting and safety instructions.

Updated: 11 August 2026. Basis: official HJC Europe motorcycle helmet size chart and proper-fit guidance, plus official HJC Sports product pages for the bicycle helmet models listed above.