HJC F 31
M, 57 - 58 cmDelivered by the day after tomorrow6 pieces in stock
free shipping
Colour6
Size3
At a Glance
Aramid and fibreglass matrix
The shell is made from a composite matrix of aramid and fibreglass to provide the helmet with essential structural strength.
Comprehensive visor features
The visor is designed to be scratch-resistant and anti-fog, and also offers built-in protection against UV radiation.
Active ventilation system
Active ventilation ensures the necessary exchange of air beneath the helmet shell while riding.
In Detail
Finding the right size motorbike helmet
To determine the correct motorbike helmet size, we recommend measuring your head circumference in centimeters with a tape measure. Wrap the measuring tape around the fullest part of your head – this will be just above the ears and eyebrows for most – and take the measurement at the forehead.Scope of delivery visor
Unless expressly stated otherwise in the product description, motorbike helmets are supplied with a clear visor as standard - even if they are shown in the pictures with a tinted or mirrored visor.30-day right of return
24 Months Warranty (Bring-in)
1 additional offer





