LS2 FF805 Thunder Carbon GP Pro FIM Helmet – Natural Carbon Matte
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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.
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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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FIM-homologated and built for the demands of the circuit, the LS2 FF805 Thunder Carbon GP Pro is the race helmet LS2's own competition riders trust at the highest level. Its 100% carbon fibre shell delivers an exceptional strength-to-weight ratio — tipping the scales at just 1,280 g (±50 g, size M) — while the natural carbon matte finish wears its race credentials with restraint. This is a helmet engineered for riders who measure performance in lap times, not aesthetics.
Key Features
- FIM-homologated and UNECE 22.06 certified — cleared for use in professional racing at federation level
- 100% carbon fibre shell in three shell sizes for a precise, performance fit at every head circumference
- Multiple forehead and crown vents channelled through the EPS liner for maximum airflow management on track
- Wide scratch-resistant visor prepared for Pinlock Max Vision 120, with tear-off post provisions for racing use
- X-Static© silver antibacterial liner — removable and fully washable to keep you fresh across race weekends
- Emergency cheek-pad release system for safe, rapid removal by trackside medical personnel
- Reinforced chin strap with double-D-ring retention for a secure, regulation-compliant fastening
Race-Proven Construction
The FF805 Thunder Carbon GP Pro shell is produced using a pure carbon fibre layup — no hybrid fill, no compromise. Three distinct shell sizes ensure the fit remains close and aerodynamically efficient regardless of head size, avoiding the oversized shell profiles that plague cheaper full-face helmets. The race spoiler integrated into the shell's upper section works to manage high-speed stability and reduce aerodynamic lift during braking, giving riders confidence when pushing to the limit.
Ventilation is engineered rather than decorative: multiple inlets across the forehead and crown feed air directly into EPS-channelled ducts, pulling heat away from the head efficiently during hard riding. The peripheral vision envelope is deliberately wide — a critical safety and awareness advantage on track where situational awareness can be the difference between a clean lap and a collision.
Track-to-Paddock Convenience
Safety reflective patches are sewn into the shell, satisfying French road regulations (reflective stickers included) and improving visibility in low-light conditions during transit to and from the circuit. The interior features LS2's X-Static© silver antibacterial treatment, which actively resists odour build-up over successive track sessions. The fully removable liner means a thorough clean between race weekends is straightforward, maintaining hygiene across a full season.
The visor system is race-ready from the box: the wide polycarbonate screen is pre-drilled for tear-offs and compatible with the Pinlock Max Vision 120 anti-fog insert (insert included). A dark-tinted visor is also supplied, covering the transition between paddock and circuit without requiring an additional purchase.
Fitment & Compatibility
This helmet is a universal full-face race helmet and is compatible with all motorcycle disciplines requiring FIM homologation or UNECE 22.06 certification. Consult the size guide below before ordering to ensure the closest performance fit.
- XS — 53–54 cm head circumference
- S — 55–56 cm head circumference
- M — 57–58 cm head circumference
- L — 59–60 cm head circumference
- XL — 61–62 cm head circumference
- XXL — 63–64 cm head circumference
To measure your head: wrap a soft tape measure approximately 1 cm above the ears around the widest point of your head. If you fall between sizes, size up for comfort or consult the Inter-Pace team.
Specifications
| Specification | Detail |
|---|---|
| Part number | 168055211 |
| Shell material | 100% carbon fibre |
| Certification | FIM homologated, UNECE 22.06 |
| Weight | 1,280 g ±50 g (size M) |
| Finish | Natural carbon, matte |
| Retention system | Double-D-ring |
| Anti-fog provision | Pinlock Max Vision 120 ready (insert included) |
| Tear-off provision | Yes |
| Liner | Removable and washable, X-Static© silver antibacterial |
| Part Number | 168055211 |
|---|---|
| Shell Material | 100% carbon fibre |
| Certification | FIM homologated, UNECE 22.06 |
| Weight | 1,280 g ±50 g (size M) |
| Finish | Natural carbon, matte |
| Retention System | Double-D-ring |
| Anti-Fog Provision | Pinlock Max Vision 120 ready (insert included) |
| Tear-Off Provision | Yes |
| Liner | Removable and washable, X-Static© silver antibacterial |
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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 insert
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1x premium helmet bag
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1x set of tear-off strips
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1x reflective sticker (mandatory in France)
Fitment data coming soon.
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// LS2
LS2 FF805 Thunder Carbon GP Pro FIM Helmet – Natural Carbon Matte

Tech specs
- Part Number
- 168055211
- Shell Material
- 100% carbon fibre
- Certification
- FIM homologated, UNECE 22.06
- Weight
- 1,280 g ±50 g (size M)
- Finish
- Natural carbon, matte
- Retention System
- Double-D-ring
- Anti-Fog Provision
- Pinlock Max Vision 120 ready (insert included)
- Tear-Off Provision
- Yes
- Liner
- Removable and washable, X-Static© silver antibacterial
// Support
Frequently asked questions
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