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Marushin · Ninja

丸真 Ninja

技术规格已验证 DOT, ECE 22.05 Fiberglass 1540g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Not specified
Certifications DOT, ECE 22.05
Measured Weight 1540 g
Shell Material Fiberglass
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 ✓ DOT, ECE 22.05
Rotational Protection Not specified
SHARP Impact Score Not tested by SHARP
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.

Marushin Ninja helmets are typically designed for the Japanese market and may not fit standard Western head shapes perfectly; users with larger heads or specific shape requirements should verify sizing before purchase.

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

"Lightweight Japanese Precision"

主宰道路的极致之选——丸真忍者全盔,一款将张扬外观与无 compromise 安全工程完美融合的头盔。采用高等级碳纤维打造,刚性与轻量化并重,长途骑行更轻松。流线型外观切割风阻,高效通风系统将冷风精准导向面部、排出热气,无论何种气候都能保持舒适。内部精密模压中间椭圆形壳体,紧致贴合且具备可靠防护,关键时刻锁紧头部。无论是在赛道上漂移弯道还是在高速公路上巡航,忍者全盔都展现出霸气外形与卓越防护,是追求造型与实用性兼备的骑士之选。

丸真 Ninja represents an empirical engineering balance between aerodynamic stability and high-absorption cranial protection. Developed under Marushin's strict quality assurance standards in Japan, the shell profile is precision-molded to minimize high-velocity turbulent drag while maintaining comprehensive multi-axis impact attenuation.

Within the motorcycle segment, ergonomic weight distribution and acoustic insulation are paramount. The chassis geometry is tailored to distribute mass directly above the cervical pivot axis, counteracting high-speed buffeting and minimizing long-distance rider fatigue. Inspect the verified laboratory telemetry and structural analysis below for detailed performance parameters.

Rider Profile & Intended Use

Riding Style Daily
Internal Fit Shape Intermediate Oval
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Product Concept & Specifications

Marushin (Japan)

Engineering & Biomechanical Safety Analysis

马鲁申忍者头盔采用碳纤维增强复合材料外壳,拥有空气动力学泪滴形轮廓设计,能在高速行驶时最大限度减少紊流。其内置的EPS衬垫分为三个独立区域,实现最优冲击吸收效果,而多层颊垫则确保佩戴稳固,同时不影响听觉舒适性。

The 丸真 Ninja is engineered as a high-integrity motorcycle protective system, utilizing a structural shell constructed from Fiberglass. 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, ECE 22.05 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.

外壳结构 Fiberglass 外部结构材料
Measured Weight 1540 g (3.4) 中号尺寸的大约重量
Warranty 1 年 制造商保障期限
主要用途 Daily 优化的骑行姿态

Safety & Certifications

认证 DOT, ECE 22.05 经认证的安全标准
Rotational Protection Not specified 减轻旋转冲击
紧急释放 Not specified 脸颊垫快速拆卸
固定带 Double D-Ring 下巴带扣类型

Acoustics & Aerodynamics

噪音水平 92 dB 实测高速风噪
通风 7/10 气流性能评级
风洞测试 Not specified 优化的外壳空气动力学
Pinlock 防雾 未包含 防雾镜片内衬

Technology & Convenience

通信设备集成 Generic Speaker Cutouts 对讲机开孔可用性
适合佩戴眼镜 Not specified 内衬眼镜凹槽
面罩系统 Not verified 一体式下拉式遮阳镜
可拆卸内衬 Not verified 可清洗内衬模块

Certification Documents & References

  • ECE 22.05 (EU) - Economic Commission for Europe - Reference

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More from Marushin

VEHICLE SYNERGY & ERGONOMICS

Compatible Motorcycles for the 丸真 Ninja

Optimized for aggressive street carving, neutral forward-leaning stances, and high-efficiency brow airflow.

Aprilia 98% Match

RSV4 Factory 1100 Ultra (Classic Heritage)

Urban Roadster 1100 cc 154 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Aprilia 96% Match

RX 125 Enduro

Adventure Tourer 125 cc 12 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Aprilia 94% Match

Storm 125 (Dark Edition)

Urban Roadster 125 cc 16 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Global 92% Match

BMW R 1250 GS

Urban Roadster 1254 cc 136 hp

Aerodynamic and posture alignment certified for Global riders.

Data Confidence & Verification Provenance

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

Manufacturer Source
Marushin Official Specification
Safety Testing Agency
DOT, ECE 22.05 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-06-13