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Product description
The Nolan X-804 ST Full Face Motorcycle Helmet - Asso 344 combines advanced carbon fibre technology, racing-inspired aerodynamics and Italian motorsport heritage in a premium full face motorcycle helmet. Engineered for demanding riders who prioritise performance, protection and precision, the X-804 ST Ultra Carbon features a lightweight shell and aggressive aerodynamic profile designed for high-speed riding. Its distinctive Asso 344 graphic finish complements the helmet's sporting character, making it an excellent choice for sports motorcycle enthusiasts, track day riders and motorcyclists seeking advanced racing technology for the road.
Manufactured entirely in Italy, the Nolan X-804 ST features an advanced ultra-carbon shell engineered to deliver an excellent combination of strength, low weight and impact protection. Meeting the UN/ECE 22-06 safety standard, the helmet incorporates the Nolan Emergency Release System (NERS), designed to assist with helmet removal in emergency situations. A secure D-ring retention system and removable chin straps contribute to its performance-focused construction, while the specially optimised lower rear edge improves neck mobility when adopting an aggressive, forward-leaning riding position.
The ultrawide, flat and scratch-resistant visor provides enhanced upper and lateral visibility, helping riders maintain awareness when riding in a sporty or racing posture. A Pinlock® fog-resistant inner visor helps reduce misting in changing weather conditions, while the Safety Visor Lock System (SVLS) provides additional visor security. The visor mechanism features screwed safety fixings and adjustable positioning for precise operation. An additional track-only visor, prepared for tear-off use, is supplied in the box, providing a dedicated option for circuit riding.
Aerodynamic performance is enhanced by Nolan's removable Racetrack Aerodynamic Spoiler (RAS), which complements the helmet's streamlined profile, while the Racing Air Flow (RAF) ventilation system promotes effective airflow during demanding rides. Inside, the premium Carbon Fitting Racing Experience comfort padding works alongside the advanced Liner Adjustable Fitting (LAF) system to provide a personalised fit. Anatomically shaped 3D cheek pads feature removable padding and moulded polystyrene lining, while the Eyewear Adaptive (EA) system provides additional comfort for riders who wear glasses.
Additional performance-oriented features include a wind protector, breath deflector and preparation for a compatible Camel Bag hydration system, providing practical functionality for longer rides and track sessions. Optional liner adjustment padding, alternative Steadyfit cheek pads and a tear-off kit allow further customisation to suit individual preferences. Finished in the distinctive Asso 344 design, the Nolan X-804 ST Ultra Carbon delivers an impressive combination of lightweight construction, aerodynamic performance and advanced helmet technology for riders who demand comfort, protection and precision on the road or circuit.
Contents
Your package will include the following:
- 1 X Nolan X-804 ST Full Face Motorcycle Helmet - Asso 344
Standard Helmet Sizing Guide
Please use the conversion table below to determine the right size for you:
| Size | XXXS | XXS | XS | S | M | L | XL | XXL | XXXL |
|---|---|---|---|---|---|---|---|---|---|
| Adult | 49-50cm | 51-52cm | 53-54cm | 55-56cm | 57-58cm | 59-60cm | 61-62cm | 63-64cm | 65-66cm |
Product description
The Nolan X-804 ST Full Face Motorcycle Helmet - Asso 344 combines advanced carbon fibre technology, racing-inspired aerodynamics and Italian motorsport heritage in a premium full face motorcycle helmet. Engineered for demanding riders who prioritise performance, protection and precision, the X-804 ST Ultra Carbon features a lightweight shell and aggressive aerodynamic profile designed for high-speed riding. Its distinctive Asso 344 graphic finish complements the helmet's sporting character, making it an excellent choice for sports motorcycle enthusiasts, track day riders and motorcyclists seeking advanced racing technology for the road.
Manufactured entirely in Italy, the Nolan X-804 ST features an advanced ultra-carbon shell engineered to deliver an excellent combination of strength, low weight and impact protection. Meeting the UN/ECE 22-06 safety standard, the helmet incorporates the Nolan Emergency Release System (NERS), designed to assist with helmet removal in emergency situations. A secure D-ring retention system and removable chin straps contribute to its performance-focused construction, while the specially optimised lower rear edge improves neck mobility when adopting an aggressive, forward-leaning riding position.
The ultrawide, flat and scratch-resistant visor provides enhanced upper and lateral visibility, helping riders maintain awareness when riding in a sporty or racing posture. A Pinlock® fog-resistant inner visor helps reduce misting in changing weather conditions, while the Safety Visor Lock System (SVLS) provides additional visor security. The visor mechanism features screwed safety fixings and adjustable positioning for precise operation. An additional track-only visor, prepared for tear-off use, is supplied in the box, providing a dedicated option for circuit riding.
Aerodynamic performance is enhanced by Nolan's removable Racetrack Aerodynamic Spoiler (RAS), which complements the helmet's streamlined profile, while the Racing Air Flow (RAF) ventilation system promotes effective airflow during demanding rides. Inside, the premium Carbon Fitting Racing Experience comfort padding works alongside the advanced Liner Adjustable Fitting (LAF) system to provide a personalised fit. Anatomically shaped 3D cheek pads feature removable padding and moulded polystyrene lining, while the Eyewear Adaptive (EA) system provides additional comfort for riders who wear glasses.
Additional performance-oriented features include a wind protector, breath deflector and preparation for a compatible Camel Bag hydration system, providing practical functionality for longer rides and track sessions. Optional liner adjustment padding, alternative Steadyfit cheek pads and a tear-off kit allow further customisation to suit individual preferences. Finished in the distinctive Asso 344 design, the Nolan X-804 ST Ultra Carbon delivers an impressive combination of lightweight construction, aerodynamic performance and advanced helmet technology for riders who demand comfort, protection and precision on the road or circuit.
Contents
Your package will include the following:
- 1 X Nolan X-804 ST Full Face Motorcycle Helmet - Asso 344
Standard Helmet Sizing Guide
Please use the conversion table below to determine the right size for you:
| Size | XXXS | XXS | XS | S | M | L | XL | XXL | XXXL |
|---|---|---|---|---|---|---|---|---|---|
| Adult | 49-50cm | 51-52cm | 53-54cm | 55-56cm | 57-58cm | 59-60cm | 61-62cm | 63-64cm | 65-66cm |











































