Nolan X-804 ST UC ASSO 343 Brown Full Face Motorcycle Helmet
The X-804 ST Ultra Carbon delivers the raw power, protection, and ultra-lightweight carbon engineering of our flagship racing helmet, reimagined with a sleek aesthetic tailored for the road. Built upon the same high-performance shell and safety architecture as the track-dominating X-804 RS UC, this "Street" version replaces the aggressive, race-oriented rear spoiler with a more compact, streamlined design.
The result? Safety redefined—without compromise—and aerodynamics optimized for high-speed stability on the road, complemented by a sophisticated, premium interior designed for maximum comfort.
Technical Specifications:
Safety:
- Constructed from carbon fiber, renowned for its impact resistance and lightweight properties.
- Available in 4 outer shell sizes (1st: XXS/XS/S | 2nd: M/L | 3rd: XL/XXL).
- 6 internal EPS shell sizes (XXS-XS | S | M | L | XL | 2XL).
- Multi-density EPS for optimized impact absorption.
- Advanced NERS (Nolan Emergency Release System): An enhanced version of the Nolan Emergency Release System, allowing for quick and safe removal of the helmet in emergency situations. Additionally, the traditional assembly system simplifies the process of attaching and detaching components, requiring no hooks or clips. Double D-ring retention system
- Homologation: ECE 22.06
- Weight: approx. 1390g ± 50g
Visibility:
- Ultrawide clear visor, offering an expansive field of view
- Visor prepared for a Pinlock lens, with adjustable pins (Pinlock lens included)
- Visor field of view: 97° vertical, 225° horizontal
- Safety Visor Lock System (SVLS): Ensures the visor remains securely in place during extreme racing conditions, preventing accidental opening at high speeds
- Visor mechanism with a screw-secured locking system
- Tinted visor included Iridium Silver
Ventilation:
- RAF (Racing Air Flow): Optimizes ventilation to maintain an ideal temperature on the track, ensuring maximum focus even at high speeds
- 1 high-flow chin air intake with a defogging function
- 1 direct-entry front air intake
- 2 top air intakes with diffused airflow
- 2 side air extractors for air evacuation
Aerodynamics:
Profiled spoiler, more compact than that of the X-804 RS model
Additional features:
- Open-mesh fabric in the upper inner liner to facilitate airflow between the air intakes and the rider's head
- Premium polyamide fabric woven with carbon fibers for thermoregulation and quick drying
- Italian "Sakura" premium polyamide fabric on the lower section of the cheek pads, providing comfort and durability in areas prone to abrasion
- LAF (Liner Adjustable Fitting): Allows for optimal adjustment of the internal padding to suit the shape of the rider's head, ensuring maximum comfort EA - Eyewear Adaptive: Designed for users who wear prescription glasses
- Steady fit: 3D-contoured cheek pads
- Removable cheek pad padding
- Racing cheek pads with adjustable thickness (thicker or thinner options)
- Lower rear edge profile optimized to improve neck mobility when in a racing riding position
- Wind protector and breath deflector included
- Ready for N-Com intercom system
Accessories / Spare Parts:
