Nolan X-804 RS Ultra Carbon Puro full-face helmet in carbon fibre

The Nolan X-804 RS Ultra Carbon Puro is the full-face helmet designed for riders who want the maximum in speed and precision: a structural carbon fibre shell, development born in MotoGP and WorldSBK racing and a black Puro finish. A helmet for the track and sporty road riding for the rider who accepts no compromises.

Carbon fibre shell and RS aerodynamics

The shell is forged in structural carbon fibre, a material that radically reduces weight while keeping a high level of strength. At the back the RS aerodynamic spoiler, the RAS system, is designed to stabilise the helmet at high speed and reduce neck fatigue when the pace rises on the straights.

Visor, interior and fit

• Visor opening of 225° horizontally and 97° vertically for a very wide field of view.
• Central safety lock for the visor.
• Carbon Fitting Racing Experience interior with active carbon filaments that manage moisture, speed up cooling and control static electricity.
• Fully adjustable fit with no pressure points, to stay focused even in the heat of the starting grid.

Tips for safe use

Always fasten the closure buckle before setting off and check that the chin strap is tensioned correctly: the helmet must not come off when pulled from the back. Do not apply paint, stickers or modifications to the shell without checking that they are compatible with the materials. Keep the visor clean and free from scratches, especially when riding in the evening or in low light, and combine the helmet with suitable gloves, jacket and protections: a good helmet works best as part of a complete kit.

How to choose the right size

To choose your size, measure the circumference of your head with a tailor's tape, placing it about one centimetre above your eyebrows and passing it around the widest part of the back of your head, then compare the value with the manufacturer's size chart. A well-fitting helmet wraps the head evenly, with no pressure points and no play when you move it with your hands. If you are between two sizes, wear it for a few minutes: the padding settles with use, but a helmet that is too loose does not protect as it should.

Helmet care and maintenance

Clean the shell with a soft cloth, water and neutral soap, avoiding solvents and harsh detergents that could damage paint and materials. Wash the visor with lukewarm water and dry it without rubbing. Let the helmet dry away from heat sources and store it in a dry place, ideally in its bag. After a serious impact, or when the materials show signs of wear, replace the helmet: protection is no longer guaranteed as it was originally.

If you are unsure about size or colour, write to Stop and Go: we will help you choose the helmet that best suits the way you ride.