Global Helmet Intelligence Platform

Nolan · N21 Visor

Nolan N21 Visor Solid TC-3

技術仕様確認済み Open Face ECE 22.06 Polycarbonate 1100g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category オープンフェイス
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 22.05
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.

Open-face design with TC-3 visor; fits most head shapes but may require sizing up for larger occipital lobes.

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 blend of urban agility and road-ready protection with the Nolan N21 Visor Solid TC-3. This open-face helmet redefines the classic half-shell aesthetic with modern engineering, offering a sleek, matte-finished profile that commands attention without compromising on safety. The integrated TC-3 visor provides superior optical clarity and UV protection, while the advanced ventilation system ensures your ride remains cool even in stop-and-go traffic. Designed for those who value style as much as substance, the N21 fits securely with an intermediate oval shape, making it the ideal companion for city commutes and weekend explorations. Elevate your riding experience today.

Rider Profile & Intended Use

Riding Style Commuter
Helmet Category オープンフェイス
Internal Fit Shape Intermediate Oval
Real-time price tracking active across international retailers.

購入先

販売店 価格 Availability
Amazon (US) 現在の価格を確認 サイトで見る 価格を確認 →

価格履歴とトレンド

ℹ️ Helmetsanは、独立したオートバイの安全性・意思決定エンジンです。価格を確認したり、小売店のリンク経由で購入したりすると、追加費用なしでHelmetsanがアフィリエイト報酬を受け取る場合があります。

Product Concept & Specifications

Nolan (Italy)

Engineering & Biomechanical Safety Analysis

The N21 utilizes Nolan's TC-3 visor technology with a solid construction that maximizes aerodynamic stability while minimizing wind buffeting. Its internal EPS liner features a multi-density foam structure designed to absorb impact energy efficiently without adding excessive weight, ensuring a balance of safety and comfort.

The Nolan N21 Visor Solid TC-3 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.

シェル構造 Polycarbonate 外側の構造素材
Measured Weight 1100 g (2.43) Mサイズのおおよその重量
Warranty 2 Years メーカー補償期間
主な用途 Commuter 最適化されたライディング姿勢

Safety & Certifications

認証 ECE 22.05 認証済み安全規格
Rotational Protection Yes (Rotational Mitigation) 回転衝撃を軽減
緊急リリース Not specified チークパッドのクイック取り外し
保持ストラップ Double D-Ring チンストラップのバックルタイプ
SHARP衝撃評価 5/5 SHARP UK衝撃試験スコア確認済み

Acoustics & Aerodynamics

騒音レベル 94 dB 走行時に実測した風切り音
ベンチレーション 6/10 エアフローパフォーマンス評価
風洞試験済み Not specified 最適化されたシェルの空力性能
Pinlock 防曇 含まれていません 曇り止めバイザーインサート

Technology & Convenience

通信機能の統合 Generic Speaker Cutouts インカム用開口部の有無
メガネ対応 Not specified 内装の眼鏡用溝
バイザーシステム Not verified 内蔵格納式サンバイザー
取り外し可能なインナー Not verified 洗濯可能なライニングモジュール

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.

Compare & buy

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VEHICLE SYNERGY & ERGONOMICS

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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
2026-09-21