Global Helmet Intelligence Platform

Steelbird · Adonis

Steelbird Adonis Vortex TC-2

技術仕様確認済み Open Face DOT Polycarbonate 900g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category オープンフェイス
Certifications DOT
Measured Weight 900 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.

Open-face design offers maximum ventilation; suitable for track days and street riding in warm climates. Chin bar provides structural integrity without full-face 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

"Safety First"

Command the road with the Steelbird Adonis Vortex TC-2, where aggressive styling meets uncompromising safety. Designed for the modern rider who refuses to compromise on aesthetics, this open-face helmet features a sculpted aerodynamic shell that slices through the wind with minimal drag. The integrated visor system provides superior peripheral vision and UV protection, while the advanced ventilation channels ensure your cooling system remains active even in stop-and-go traffic. Built with high-strength composite materials, it offers robust protection without the bulk of a full-face unit. Whether you are cruising city streets or carving canyon roads, the Adonis Vortex TC-2 delivers a perfect balance of lightweight agility and premium comfort, making it the ultimate choice for style-conscious riders.

Rider Profile & Intended Use

Riding Style Daily
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

Steelbird (India)

Engineering & Biomechanical Safety Analysis

The Adonis Vortex TC-2 utilizes a composite shell architecture reinforced with carbon fiber inserts to maximize impact resistance while maintaining an open-face profile. Its internal EPS liner features multi-density zones tailored for the intermediate oval head shape, ensuring optimal energy absorption and retention during high-speed maneuvers.

The Steelbird Adonis Vortex TC-2 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 DOT 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 900 g (1.98) 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 Daily 最適化されたライディング姿勢

Safety & Certifications

認証 ECE 22.06 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 92 dB 走行時に実測した風切り音
ベンチレーション 7/10 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

Compare & buy

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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
Steelbird Official Specification
Safety Testing Agency
DOT Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-21