LS2 FF805 Thunder Carbon Helmet - Natural Carbon Matte Finish
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Size chart LS2 FF805
| 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 |
| 4XL | 67–68 cm | 26.4–26.8 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.
- Worldwide shipping
- Genuine parts & verified quality
- Personal email support
- 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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The LS2 FF805 Thunder Carbon is a race-bred full-face helmet that translates genuine motorsport engineering into a practical, everyday package. Built around a 100% carbon fibre shell, it delivers serious protection at a weight that makes long days in the saddle genuinely comfortable — all finished in a natural exposed-carbon matte that looks as purposeful as it performs.
Key Features
- 100% carbon fibre shell construction for an outstanding strength-to-weight ratio and all-day wearing comfort
- Three shell sizes ensure a precise, proportionate fit across every head size from XS to XXL
- Prepared for Pinlock Max Vision 120 anti-fog insert — included as standard, so you are ready to ride the moment it arrives
- Racing spoiler integrated into the shell profile for maximum aerodynamic stability at motorway and track speeds
- Multiple forehead and crown vents channelled directly through the EPS liner for efficient, draught-free airflow
- Emergency cheek-pad release system allows first responders to remove the helmet safely without moving your neck
- Double-D-ring retention system and reinforced chin strap provide secure, rattle-free fastening every ride
All-Day Usability
Where many carbon helmets ask you to choose between performance and practicality, the FF805 Thunder Carbon sidesteps that compromise. The wide, scratch-resistant visor gives a generous peripheral field of view on urban commutes and twisty back roads alike, while the Pinlock Max Vision 120 lens — included in the box — eliminates fogging without any additional outlay. The removable inner lining carries an X-Static© Silver antibacterial treatment, meaning it stays fresher for longer and washes easily when it does need attention. Safety-reflective patches add a layer of passive visibility for early-morning or late-evening rides.
Race-Derived Construction
LS2 developed the FF805 directly from its involvement in competitive motorsport. The single-piece 100% carbon fibre shell is formed in three distinct sizes rather than being artificially padded to cover a wider range — a detail that contributes both to the precise fit and to the 1,280 g (±50 g, size M) target weight. The EPS liner is fully channelled to align with the ventilation ports, so airflow management is a structural feature rather than an afterthought. Tear-off posts are integrated into the visor surround for circuit use, and a set of tear-off films is included straight from the box.
Fitment & Compatibility
The FF805 Thunder Carbon is a universal full-face helmet and is not vehicle-specific. Use the size guide below to find your correct size — measure approximately 1 cm above the ears around the widest part of your head.
- XS — 53–54 cm
- S — 55–56 cm
- M — 57–58 cm
- L — 59–60 cm
- XL — 61–62 cm
- XXL — 63–64 cm
Specifications
| Feature | Detail |
|---|---|
| Shell material | 100% carbon fibre |
| Approval | UNECE 22-06 |
| Weight | approx. 1,280 g ±50 g (size M) |
| Colour | natural carbon, matte |
| Retention system | Double-D-ring |
| Anti-fog visor | Yes — Pinlock Max Vision 120 included |
| Removable lining | Yes — X-Static© Silver antibacterial treatment |
| Tear-off ready | Yes |
| Part number | 168058811 |
| Brand | LS2 |
|---|---|
| Model | FF805 Thunder Carbon |
| Shell material | 100% carbon fibre |
| Approval | UNECE 22-06 |
| Weight | approx. 1,280 g ±50 g (size M) |
| Colour | natural carbon, matte |
| Retention system | Double-D-ring |
| Anti-fog system | Pinlock Max Vision 120 (included) |
| Part number | 168058811 |
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1x LS2 FF805 Thunder Carbon helmet
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1x clear visor
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1x dark tinted visor
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1x Max Vision Pinlock lens
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1x premium carry bag
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1x set of tear-off films
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1x reflective sticker (compulsory in France)
Fitment data coming soon.
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// LS2
LS2 FF805 Thunder Carbon Helmet - Natural Carbon Matte Finish

Tech specs
- Brand
- LS2
- Model
- FF805 Thunder Carbon
- Shell material
- 100% carbon fibre
- Approval
- UNECE 22-06
- Weight
- approx. 1,280 g ±50 g (size M)
- Colour
- natural carbon, matte
- Retention system
- Double-D-ring
- Anti-fog system
- Pinlock Max Vision 120 (included)
- Part number
- 168058811
// Support
Frequently asked questions
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