HJC C 91N Flip-Up Helmet - nepos mc-5
HJC C 91N Flip-Up Helmet - nepos mc-5
(Product No.: BB-107H53-0.25-XXL)
HJC C 91N Flip-Up Helmet - nepos mc-5

HJC C 91N Flip-Up Helmet - nepos mc-5

200.00 CHF UVP 229.00 CHF

incl. 8.1% tax excl. Shipping costs

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Shipping time:
1-2 weeks 1-2 weeks
Description
Flip-up helmet C91N (ECE standard 22.06)
 
The C91N flip-up helmet offers riders some of the best features on the market at a budget-friendly price:
 
CAD designed polycarbonate composite shell: lightweight, superior fit and comfort.
 
Chin section is easy to operate even when wearing gloves.
 
Integrated sun visor with anti-scratch coating and user-friendly sliding system.
 
Large ventilation opening at the top of the helmet efficiently routes fresh air through the deep EPS channels for a cool riding experience.
 
Antibacterial SuperCool lining and cheek pads efficiently wick away moisture to keep your head cool in the summer. Head and cheek pads are removable and washable.
 
HJ-17 Visor: Provides 99% UV protection (Pinlock prepared).
 
RapidFireT Visor Replacement System: Simple and secure visor mount allows for ultra-fast, tool-free visor replacement.
 
Prepared for glasses wearers.
 
Speaker cutouts prepared.
 Prepared for SMART HJC 10B & 20B Bluetooth communication system (sold separately).

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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.