Advice & Guides Advice: How to make sure your helmet fits correctly
You'd be surprised how many riders wear a helmet that's too big for them. Here's how to tell if a lid really fits you...
1 Feb 2022
HJC F31 - Plain Black
Lightweight fibreglass helmet with integrated sun visor, removable liner and ACS ventilation system
Details
RRP
£189.99
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Verified Customer Reviews for HJC F31
once again great service from sportsbikeshop
06 May 2025 by Dean C
great helmet fits well and sizing perfect
Style: Matt Sand / Beige
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HJC F31 Great helmet
17 April 2025 by Stephen
The service from sportsbikeshop was excellent.
I love the helmet it is a great fit and the sun visor a vision saviour.
Style: Matt Black
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Helmet noise
29 March 2025 by Kevin O
The helmet has good looks and the intercom fits brilliantly and unlike other helmets there is no pressure on your ears as the speaker sockets are really deep. I was however somewhat surprised by how noisy the helmet is. I’ve always ridden with an open face helmet so I am naturally aware the they are noisier than a full face but this is the noisiest I’ve ever had. Ear plugs need to be worn.
Style: Matt Black
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Could be great but a couple of things let it down.
21 May 2024 by Anonymous
Firstly, I bought this helmet when back in the UK recently but I live in a country where you never ride over 30-35mph on your scooter so obviously not the most well rounded review.
HJC have clearly tried with this helmet and in some ways it's great. Looks good, feels comfortable.
First dislike is the clasp adjustment. I know theres a shift away from double D-ring in the helmet market but it just creates unnecessary problems. I have to have the clasp adjusted so tight on this helmet that the 2 pads that protect your neck from the clasp overlap and can become uncomfortable.
Also - when the visor is in the open position, which for me it often is, it whistles like crazy. I did some experiments to see if it was something else but it definitely seems to be the visor. Bear in mind I'm pootling around at around 30mph and it was loud enough for me to take the visor off completely and run it without. Again, something I can get away with now, but if I was off on a European tour, not so much.
As always, fantastic service from Sportsbikeshop.
Style: Matt Black
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Description
Introducing the F31 helmet, an open-face design crafted with a fibreglass shell. A helmet designed for cruisers and scooters, perfect for all-day rides or the daily commute. The lightweight design F31 features a new slim and stylish design that not only prioritizes aesthetics but also optimizes aerodynamic performance. To give the rider the best comfort, the helmet includes an extended cheek area. The dynamic multistep sun visor adds a layer of versatility, while the 2-way pivot ratchet offers improved sealing with a smooth ratchet movement. The sun visor provides riders with a larger perspective on the road. The F31 helmet is a blend of style, functionality, and comfort, making it an ideal choice for riders seeking a superior riding experience in their everyday journeys.
Product Specification
Variants
Visors
Pinlock Insert
Manufacturer
HJC F31 - Plain Black
- Advanced fibreglass composite shell construction
- Lightweight
- Dynamic multistep sun visor for optimized position
- Pinlock ready HJ-43 visor that provides 99% UV protection with anti-scratch treatment
- Advanced channelling ventilation system
- Moisture wicking interior
- Crown and cheek pads are removable and washable
- Bluetooth speaker pockets
Introducing the F31 helmet, an open-face design crafted with a fibreglass shell. A helmet designed for cruisers and scooters, perfect for all-day rides or the daily commute. The lightweight design F31 features a new slim and stylish design that not only prioritizes aesthetics but also optimizes aerodynamic performance. To give the rider the best comfort, the helmet includes an extended cheek area. The dynamic multistep sun visor adds a layer of versatility, while the 2-way pivot ratchet offers improved sealing with a smooth ratchet movement. The sun visor provides riders with a larger perspective on the road. The F31 helmet is a blend of style, functionality, and comfort, making it an ideal choice for riders seeking a superior riding experience in their everyday journeys.
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