Nolan X-804 RS Ultra Carbon Piega Dark Blue/Blue/Red 366 Race Helmet
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Size chart Nolan X-804 RS/N60-6
| Size | Head circumference (cm) | Head circumference (inch) |
|---|---|---|
| 2XS | 54 cm | 21.3 in |
| XS | 55 cm | 21.7 in |
| S | 56 cm | 22.0 in |
| M | 58 cm | 22.8 in |
| L | 60 cm | 23.6 in |
| XL | 62 cm | 24.4 in |
| 2XL | 64 cm | 25.2 in |
| 3XL | 65 cm | 25.6 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.
Payment & Security
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Born on the racetrack and refined under the demands of MotoGP and Superbike competition, the Nolan X-804 RS Ultra Carbon in the Piega Dark Blue/Blue/Red 366 graphic is a full-face helmet that puts Italian race engineering squarely on your head. The ultra-lightweight carbon fibre shell, sculpted aerodynamics and a comprehensive suite of track-focused systems make this the choice for riders who refuse to compromise — whether they are chasing lap times or carving up a Sunday road.
Key Features
- Ultra-Carbon shell constructed from carbon fibre across four outer shell sizes and six EPS inner shell sizes for a precisely tailored fit at every head circumference
- RAS Racetrack Aerodynamic Spoiler delivers optimised downforce and stability at maximum speed, directly inspired by top-tier motorsport aero development
- RAF Racing Air Flow System channels consistent, pressurised ventilation through the helmet at pace, keeping concentration sharp on the longest stints
- NERS Nolan Emergency Release System allows first responders to remove the helmet quickly and safely following an incident
- ECE 22.06 homologated — meeting the most stringent current European safety standard for road and race use
- Ultrawide visor with 97° vertical and 225° horizontal field of view, supplied with a Pinlock anti-fog inner lens and a dedicated dark track-only visor with tear-off compatible system
Race-Derived Construction
The X-804 RS Ultra Carbon carries four distinct outer shell sizes matched to six EPS inner configurations. That combination ensures the protection geometry is never compromised by packing excess material into an ill-matched shell — each size gets the structure it needs. At approximately 1,420 g ±50 g, the helmet stays light enough to reduce neck fatigue across a full track day without sacrificing the rigidity that a carbon fibre monocoque delivers under impact.
The LAF Liner Adjustable Fitting system allows the internal volume to be tuned with millimetre precision, so the helmet locks on rather than simply sitting on. The double-D-ring closure keeps retention consistent and predictable at speed — no ratchet creep, no guesswork.
Comfort at Full Throttle
Nolan's Carbon Fitting Racing Experience interior uses activated-carbon fibres that manage moisture, resist bacteria and dry rapidly between sessions. The liner is fully removable and machine washable, and the LPC Liner Position Control system lets you shift the cheek pad relationship fore and aft to dial in the exact fit for your face shape.
- Removable and washable interior with activated-carbon fibre technology
- LPC Liner Position Control for fine-tuned interior positioning
- 3D-shaped cheek pads for secure lateral retention under braking
- EA Eyewear Adaptive System — correctly accommodates spectacle wearers without pressure points
- Camel-Bag hydration preparation for endurance riding and extended track sessions
Vision and Visor Technology
The flat, scratch-resistant Ultrawide visor spans a 225° horizontal and 97° vertical arc — a field of view that gives you the full picture when picking an apex or scanning for track limits. The Safety Visor Lock System (SVLS) holds the visor positively closed at any speed, eliminating flutter or unintended cracking at the top of a straight. The included Pinlock lens prevents fogging regardless of conditions, while the included dark track-only visor — tear-off system compatible — handles bright circuit conditions without compromise.
Piega 366 — Racing Livery, Italian Precision
The Piega Dark Blue/Blue/Red 366 graphic was designed to project intent. Deep navy transitions into a vivid mid-blue, punctuated by motorsport red, all finished in a gloss that reads clearly at speed. It is racing DNA expressed through colour, manufactured at Nolan's facility in Brembate di Sopra, Bergamo — entirely Made in Italy.
Fitment & Compatibility
The Nolan X-804 RS Ultra Carbon is approved for both road and racetrack use under ECE 22.06 homologation. It is not compatible with the Nolan N-Com Bluetooth intercom system. The EA Eyewear Adaptive System makes it suitable for spectacle wearers. Available in sizes XXS through XXXL.
Size Guide
Measure your head circumference approximately 2 cm above the eyebrows, keeping the tape parallel to the floor. If your measurement falls between two sizes, choose the smaller for a sportier, more secure racing fit.
| Size | Head circumference (cm) | Inner shell | Outer shell |
|---|---|---|---|
| 2XS | 54 | • | • |
| XS | 55 | • | • |
| S | 56 | • | • |
| M | 58 | • | • |
| L | 60 | • | • |
| XL | 62 | • | • |
| 2XL | 64 | • | • |
| 3XL | 65 | • |
Specifications
- Model: X-804 RS
- SKU: X84000927366
- Colour / Finish: Piega Dark Blue/Blue/Red 366
- Type: Full-face / Race-Sport / Road and Track
- Homologation: ECE 22.06
- Shell: Ultra-Carbon / carbon fibre, 4 outer shell sizes
- Weight: 1,420 g ±50 g
- Visor: Ultrawide, flat, scratch-resistant, Pinlock inner lens, additional dark track-only visor included
- Bluetooth / Intercom: Not compatible with Nolan N-Com
- Suitable for spectacle wearers: Yes
| Model | X-804 RS |
|---|---|
| SKU / Part Number | X84000927366 |
| Colour / Finish | Piega Dark Blue/Blue/Red 366 |
| Helmet Type / Intended Use | Full-face / Race-Sport / Road and Track |
| Homologation | ECE 22.06 |
| Shell | Ultra-Carbon / carbon fibre, 4 outer shell sizes |
| Weight | 1420 g ±50 g |
| Visor | Ultrawide, flat, scratch-resistant, Pinlock inner lens, additional dark track-only visor included |
| Bluetooth / Intercom Compatible | No, not compatible with Nolan N-Com |
| Suitable for Spectacle Wearers | Yes |
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1x helmet

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1x clear visor

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1x dark visor

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1x Pinlock

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Additional accessories (1x Nolan helmet bag, 1x breath deflector, 1x wind deflector)

Fitment data coming soon.
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// Nolan
Nolan X-804 RS Ultra Carbon Piega Dark Blue/Blue/Red 366 Race Helmet

Tech specs
- Model
- X-804 RS
- SKU / Part Number
- X84000927366
- Colour / Finish
- Piega Dark Blue/Blue/Red 366
- Helmet Type / Intended Use
- Full-face / Race-Sport / Road and Track
- Homologation
- ECE 22.06
- Shell
- Ultra-Carbon / carbon fibre, 4 outer shell sizes
- Weight
- 1420 g ±50 g
- Visor
- Ultrawide, flat, scratch-resistant, Pinlock inner lens, additional dark track-only visor included
- Bluetooth / Intercom Compatible
- No, not compatible with Nolan N-Com
- Suitable for Spectacle Wearers
- Yes
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
Frequently asked questions
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