LS2 FF818 Storm III Helmet – Dynamo Grey/Red
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Size chart LS2 FF818
| Size | Head circumference (cm) | Head circumference (inch) |
|---|---|---|
| XXS | 51–52 cm | 20.1–20.5 in |
| XS | 53–54 cm | 20.9–21.3 in |
| S | 55–56 cm | 21.7–22.0 in |
| M | 57–58 cm | 22.4–22.8 in |
| L | 59–60 cm | 23.2–23.6 in |
| XL | 61–62 cm | 24.0–24.4 in |
| XXL | 63–64 cm | 24.8–25.2 in |
| 3XL | 65–66 cm | 25.6–26.0 in |

How to measure your helmet size correctly: To find the right helmet size, measure your head circumference with a flexible tape measure.
It is important that the tape measure runs around the widest part of the head – only then will you get a correct result.
Place the tape measure at the front, about 1–2 cm above the eyebrows, and run it along the sides above the ears.
At the back, the tape must run over the largest part of the back of the head (not too low on the neck). The tape may run slightly at an angle – what matters is that it sits all the way around the largest points of the head.
Make sure the tape measure sits snugly but does not dig in. Measure 2–3 times for the most accurate result. You can then compare the measured value in centimetres (cm) with our size chart.
Tips for an accurate result
- Keep hair flat (e.g. do not measure over a voluminous hairstyle)
- Keep the tape horizontal, i.e. along the largest circumference
- Do not measure too loosely
- For values between two sizes:
→ usually choose the larger size (depending on helmet model / fit)
Important note on fit
The right helmet should fit firmly without causing uncomfortable pressure points.
A new helmet may feel a little tighter at first, as the inner lining adapts slightly over time.
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- 14-day returns — in stock ships within 24h
Shipping & Returns
We ship with DHL and FedEx — express on request. If an item is in stock, express delivery can often go out within 1 business day. Standard delivery takes about 2–5 business days domestically and usually around a week worldwide. Please check the available shipping options and delivery times in your cart, as we offer several carriers depending on the country.
Returns must be registered in advance by email and are possible in line with our cancellation policy (14-day return request + 14-day return window after approval). Please note: unregistered returns are not accepted. You'll find all details on conditions, exceptions and refunds in our cancellation policy.
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Dynamo runs a taut, mechanical pattern back from the chin bar — straight lines and hard angles rather than the Sporty's curves. In grey and red it reads as engineering rather than decoration.
Everything that is usually an extra
Three things usually sold as extras are standard here. A Pinlock 70 MaxVision anti-fog insert is in the box rather than in the accessory catalogue. A tinted sun visor drops down from inside the shell, and comes out by hand for cleaning without tools. And the chin curtain is magnetic, which sounds trivial until you have fought a popper-fastened one with cold fingers.
About the Dynamo Grey/Red finish
Grey carries most of the surface and red is used sparingly, which keeps the pattern from shouting. The gloss coat gives each panel its own highlight, so the geometry resolves differently depending on where the sun is — that is the point of a gloss finish on an angular graphic. It suits a naked or a sport-tourer better than it suits a cruiser.
A large top intake, and what it feeds
The intakes and exhausts carry transparent sections, which is not styling: it lets you see at a glance whether a vent is open, and it makes a blocked one obvious. Behind them is the substance — a large top intake, a chin intake, ducted EPS and rear extractors that pull the warm air out rather than leaving it to find its own way.
The release you hope never to need
An emergency release system is fitted to the cheek pads. Ambulance crews are trained to remove a helmet from an unconscious rider, and the safest way to do it is to take the pads out first. Most helmets at this price do not offer that. Add a reinforced chin strap, a ratchet buckle and a visor button lock and the safety specification is unusually complete for the money.
Two screens, one shell
The outer visor takes the weather: wide aperture, scratch-resistant coating, UV protection, double-injection seal, button lock, quick-release fitting. The inner one takes the sun, drops with a slider and retracts fully out of the way. The Pinlock 70 MaxVision insert is fitted to the outer screen and comes in the box.
What the ECE 22.06 plaque actually means
ECE 22.06 is not a relabelled 22.05. The old standard hit five marked points on the shell and recorded straight-line deceleration. The current one hits up to eighteen, at multiple speeds, and adds an oblique impact against a slanted, sandpaper-faced anvil — a test designed to measure rotation rather than compression.
Rotation is the injury mechanism European regulation ignored for decades: a glancing blow that twists the head does more damage to the brain than the same energy delivered straight on. 22.06 puts a hard ceiling on it. The visor and any fitted accessory go through the process too, which is why a drop-down sun visor cannot simply be added after approval.
Fit and shell sizes
3 shells, XXS to 3XL. It is the sensible middle ground: not the six-shell extravagance of a race helmet, and a long way from the one-size-fits-all moulding that makes small helmets look inflated and heavy.
The bit you actually touch
Inside sits a removable, washable interior treated to be antibacterial and hypoallergenic. The magnetic chin curtain is the detail worth naming again: it attaches without poppers, which means it survives being taken out for cleaning and actually goes back in. Speaker recesses are moulded for the current LS2 comms unit.
On noise
Nobody publishes a decibel figure for this helmet and we are not going to invent one. What can be said is where the noise comes from: turbulence at the base of the shell, air entering under the chin bar, and open vents. The chin curtain here is magnetic, which is not a gimmick: a popper-fastened curtain gets left off after the second cleaning, and a curtain that is not fitted does nothing. The sun-visor housing does widen the shell slightly at the temples compared with a helmet without one, which is a small aerodynamic cost for a large practical gain.
The rest is not the helmet's doing. A tall screen that pushes dirty air straight at your head will make any lid loud, and a naked bike at 130 km/h will beat the best-sealed helmet on the market. Earplugs remain the cheapest upgrade in motorcycling.
1600 grams, and what it buys
1600 grams, mid-size shell, no accessories. That is a real number and a real trade-off — it is the heaviest LS2 helmet in this shop. What it buys is everything the lighter models leave out, and on a touring bike with a screen the difference is far less noticeable than it is on a naked at 130 km/h.
1600 grams (±50 g), mid-size shell, no accessories — the industry convention, so the number is comparable with any other manufacturer's. What it buys you is fatigue: neck strain over a long ride is a function of mass, and a hundred grams that mean nothing in a showroom mean a great deal at the end of a four-hour stint.
Within our own LS2 line-up only 5 helmets are lighter, and each of them costs more.
Where it sits in our LS2 range
Eight LS2 full-face models are listed here and they form a ladder rather than a wall of choices. The Storm III is the equipment high point of the affordable half.
| Model | Shell | Weight | Sun visor | Pinlock | RRP |
|---|---|---|---|---|---|
| FF808 Stream II | KPA | 1550 g | yes | prepared | from 129 € |
| FF818 Storm III | KPA | 1600 g | yes | included | from 199 € |
| FF811 Vector II | HPFC | 1500 g | yes | included | from 259 € |
| FF817 Challenger II | HPFC | 1500 g | yes | included | from 329 € |
When something wears out
A helmet is not a sealed unit and the parts that wear are not the shell. Interiors compress, visors scratch, vent covers snap off in a car park. We stock the Storm III liner in every size, seven replacement visors from clear to iridium, the tinted sun visor, plus the chin curtain, chin bar trim, nose guard, ratchet mechanism and vent covers in six finishes.
That matters for how long the helmet lasts you. A liner that has taken a summer of sweat is the usual reason a helmet that once fitted starts to move on your head — and replacing it costs a fraction of replacing the helmet. The full parts list is in the FF818 Storm III Kit.
In the box
- LS2 FF818 Storm III helmet — Dynamo Grey/Red
- Carrying bag
- Pinlock® 70 MaxVision™ anti-fog insert
- Reflective stickers
Specification
- Shell — KPA, three shell sizes (2XS–S / M–L / XL–3XL)
- Weight — 1600 g (±50 g)
- Sizes — XXS to 3XL (eight sizes)
- Homologation — ECE 22.06
- Retention — ratchet buckle, reinforced chin strap, emergency cheek-pad release
- Visor — Max Vision aperture, scratch-resistant, UV-stable, double-injection seal, button lock, quick-release system
- Anti-fog — Pinlock® 70 MaxVision™ supplied
- Sun visor — integrated, tinted, tool-free removal system
- Ventilation — large top intake, chin intake, rear exhausts (all with transparent sections), channelled EPS, breath deflector
- Liner — maximum-comfort interior, antibacterial, hypoallergenic, breathable, removable and washable
- Chin curtain — magnetic
- Intercom — prepared for the current LS2 Bluetooth system
- Finish — Dynamo graphic, gloss
| Model | FF818 Storm III |
|---|---|
| SKU | 168180506 |
| Colour / Finish | Dynamo Grey/Red — Dynamo graphic, gloss |
| Homologation | ECE 22.06 |
| Helmet Type | Full-Face |
| Shell | KPA, three shell sizes (2XS–S / M–L / XL–3XL) |
| Weight | 1600 g (±50 g) |
| Sizes | XXS to 3XL (eight sizes) |
| Visor | Max Vision aperture, scratch-resistant, UV-stable, double-injection seal, button lock, quick-release system |
| Anti-fog | Pinlock® 70 MaxVision™ supplied |
Fitment data coming soon.
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Built-in sun visor
Included
LS2 Pinlock 70 MaxVision Insert DKS147
Included free
helmet only
Your helmet is always included · anything marked Included already comes with it · pick your size in the buy box above
// LS2
LS2 FF818 Storm III Helmet – Dynamo Grey/Red

Tech specs
- Model
- FF818 Storm III
- SKU
- 168180506
- Colour / Finish
- Dynamo Grey/Red — Dynamo graphic, gloss
- Homologation
- ECE 22.06
- Helmet Type
- Full-Face
- Shell
- KPA, three shell sizes (2XS–S / M–L / XL–3XL)
- Weight
- 1600 g (±50 g)
- Sizes
- XXS to 3XL (eight sizes)
- Visor
- Max Vision aperture, scratch-resistant, UV-stable, double-injection seal, button lock, quick-release system
- Anti-fog
- Pinlock® 70 MaxVision™ supplied
// Support
Frequently asked questions
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