Nolan X-904 Ultra Carbon review: this ECE 22.06 full-face touring helmet combines a carbon-fibre shell, a wide main visor and an adjustable internal sun visor. The standard model reviewed here is separate from the Quin sensor and I-ESS lighting versions.

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Visor and sun-shield adjustment
The checked listing includes a Pinlock insert, pre-fitted to the clear visor, and a five-position VPS sun visor. These are useful details when comparing what comes in the box; confirm the equipment supplied with your chosen graphic. The main visor has a scratch-resistant finish.
Liner and communication options
The Liner Adjustable Fitting system offers three padding thicknesses in four areas of the top cap. That provides scope to adjust the interior, but it does not replace trying the helmet on and checking secure retention. The cheek pads have removable padding and a design intended to accommodate glasses.
The listing identifies compatibility with N-Com Wireless Pro, N-Com Bluetooth+ and N-Com Mesh systems. Compatibility does not mean a communication unit is included. Check the exact system and installation requirements before adding one.
Protection and construction
The listed approval is ECE 22.06. Check the exact helmet label and specification for the version you are buying, particularly if you need it for a track event.
Fit and adjustment
The chin-strap fastening is Double-D. Make sure you are comfortable operating that fastening and adjusting it securely before choosing the helmet.
Visor and visibility
The listing includes a Pinlock insert. Confirm the supplied visor and insert combination for your chosen version, especially if you are comparing differently priced graphics.
Comfort and everyday use
The interior is removable for cleaning. Follow the manufacturer’s care instructions and refit the pads in their original positions.
See our motorcycle helmet reviews for more buying guides.
Related reading: Nolan N30-4 T Review.