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Nolan · N21 Visor

Nolan N21 Visor

VERIFIED TECHNICAL SPEC Open Face ECE 22.06 Polycarbonate 1100g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Open Face
Certifications ECE 22.06
Measured Weight 1100 g
Shell Material Polycarbonate
Head Shape Fit Intermediate Oval
Retention System Double D-Ring
SAFETY & CERTIFICATIONS

Verified Safety Snapshot

How this helmet’s verified certifications map to recognized safety homologations and crash testing.

Certified Homologation ✓ ECE 22.06
Rotational Protection Yes (Rotational Mitigation)
SHARP Impact Score 5/5 Stars (SHARP UK)
Retention Mechanism Double D-Ring
Emergency Release System Not specified

Safety standards compliance is based on official manufacturer documentation and public safety laboratory test results. Always verify regional compliance labels on the physical helmet prior to use.

FIT & SIZING

Verified Fit & Sizing Guide

Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.

Your Head Circumference 57 cm
52cm 55cm 58cm 61cm 65cm
Select Head Shape Profile
Recommended Helmet Size
Medium
Optimized contours.
Perfect for standard intermediate head profiles.

Designed for open-face fit; requires chin bar adjustment for optimal cheek coverage.

How to measure

Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, and repeat for consistency.

Design Concept & Background

"Passion for Safety"

Experience the perfect balance of Italian engineering and timeless style with the Nolan N21 Visor. Designed for the modern rider who demands uncompromising safety without sacrificing aesthetics, this open-face helmet features a sleek, low-profile shell that cuts through the wind with minimal drag. The interior is lined with premium, moisture-wicking EPS foam that contours perfectly to your head, offering superior comfort on long rides while the integrated sun visor provides instant protection against glare. Whether you are cruising city streets or carving canyon roads, the N21 delivers a secure fit and exceptional clarity. Its classic design ensures it remains a standout piece in any garage, blending heritage craftsmanship with contemporary performance features for an unforgettable riding experience.

Rider Profile & Intended Use

Riding Style Commuter
Helmet Category Open Face
Internal Fit Shape Intermediate Oval
Real-time price tracking active across international retailers.

Where to buy

Retailer Price Availability
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Price History & Trends

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Product Concept & Specifications

Nolan (Italy)

Engineering & Biomechanical Safety Analysis

The N21 Visor utilizes Nolan's advanced EPS liner construction with a multi-density foam architecture to optimize impact absorption while maintaining a lightweight profile. Its aerodynamic shell design incorporates specific flow channels that reduce wind buffeting and manage airflow efficiently, ensuring rider comfort during high-speed open-face riding.

The Nolan N21 Visor is engineered as a high-integrity Open Face protective system, utilizing a structural shell constructed from Polycarbonate. This structural layup is engineered to provide progressive kinetic energy dissipation during impact deceleration, distributing localized shock across outer lamina layers while minimizing deformation transfer into the internal multi-density EPS liner.

Certified to ECE 22.06 protocols, the architecture is subjected to rigorous linear deceleration limits and oblique impact evaluations to mitigate rotational acceleration forces associated with diffuse axonal injury. For a deeper breakdown of rotational thresholds and impact testing speeds, consult our ECE 22.06 vs DOT vs SNELL engineering benchmark.

Internal geometry follows a Intermediate Oval cranial profile, designed to mitigate focal pressure hot spots across the parietal ridges while maintaining uniform radial clamping pressure along the zygomatic arch. Riders seeking optimal retention stability and break-in guidance should review the cranial aspect ratios and head shape guide as well as our 3D cheek pad density protocol.

Shell composite integrity and acoustic sealing are further optimized through channelized EPS porting and aerodynamic laminar profiling. To learn how shell composites resist stress cracking under prolonged environmental cycling, inspect the composite material comparative matrix.

Fit & Shell Structure

Intermediate Oval Shape

Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.

Shell Construction Polycarbonate Outer structural material
Measured Weight 1100 g (2.43) Approximate medium size weight
Warranty 2 Years Manufacturer coverage duration
Primary Use Case Commuter Optimized riding orientation

Safety & Certifications

Certification ECE 22.06 Certified safety standard
Rotational Protection Yes (Rotational Mitigation) Mitigates rotational impact
Emergency Release Not specified Cheek pad quick removal
Retention Strap Double D-Ring Chin strap buckle style
SHARP Impact Rating 5/5 Verified SHARP UK impact test score

Acoustics & Aerodynamics

Noise Level 94 dB Measured wind noise at speed
Ventilation 6/10 Airflow performance rating
Wind Tunnel Tested Not specified Optimized shell aerodynamics
Pinlock Anti-Fog Not included Anti-fog visor insert

Technology & Convenience

Comms Integration Generic Speaker Cutouts Intercom cutout availability
Glasses Friendly Not specified Inner lining eyewear grooves
Visor System Not verified Integrated drop-down sun visor
Removable Interior Not verified Washable lining modules

Regional Legality & Compliance

🇺🇸 US Not Street Legal
Required: DOT

ECE 22.06 certification does not meet the mandatory DOT FMVSS 218 requirement for street use in the US.

🇪🇺 EU Street Legal
Required: ECE 22.06

Fully compliant with ECE 22.06 standards for road use within the European Union.

Regional Legality Guidance

US

Status: Not Street Legal

Required: DOT

ECE 22.06 certification does not meet the mandatory DOT FMVSS 218 requirement for street use in the US.

EU

Status: Street Legal

Required: ECE 22.06

Fully compliant with ECE 22.06 standards for road use within the European Union.

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Data Confidence & Verification Provenance

Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.

Manufacturer Source
Nolan Official Specification
Safety Testing Agency
ECE 22.06 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-05-09