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Studds · Marshall Pro D4

斯图兹 Marshall Pro D4 灰色

DOT, ISI

斯图兹 Marshall Pro D4 灰色
斯图兹 Marshall Pro D4 灰色
斯图兹 Marshall Pro D4 灰色

Design Story & Interactive HUD

Studds (India)

The Narrative

Studds Marshall Pro 开放式脸盔（城市款）

Technical Analysis

斯图兹·马歇尔 Pro D4 采用 DOT 和 ISI 认证的 ABS 头盔外壳，安全性能更高，而其中等椭圆形头型设计则提供舒适的佩戴体验。开放式设计改善了通风效果，减少长途骑行中的热量积聚和疲劳感。

Homologation DOT, ISI Certified safety standard
Rotational Protection Standard EPS Mitigates rotational impact
Emergency Release Not Equipped Cheek pad quick removal
Retention Strap Double D-Ring Chin strap buckle style
Acoustics Quietness Awaiting Test

Aero-acoustic profile pending track testing.

Ventilation Flow Awaiting CFD

Ventilation flow score awaiting CFD test.

Wind Tunnel Tested No Optimized shell aerodynamics
Pinlock Tech Not Included Anti-fog shield insertion
Comms Integration Generic Speaker Cutouts Intercom cutout availability
Glasses Friendly No Inner lining eyewear grooves
Visor Shield Tech Single Visor Integrated drop-down sun visor
Removable Interior Partial / Fixed Washable lining modules

Intermediate Oval Shape

Intermediate oval fit, the standard ergonomic profile suited for the majority of riders.

Shell Construction ABS Outer structural material
Measured Weight 935g (2.06) Approximate medium size weight
Warranty 2 Manufacturer coverage duration
Primary Use Case Commuter Optimized riding orientation
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Where to buy

Best price $36.95 Amazon (US)
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Price History

Interactive Size & Fit Finder

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.

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.

Regional Legality Guidance

IN

Status: Street Legal

Required: ISI

Mandatory for use on public roads in India; meets IS 4151:2015 standards.

US

Status: Not Street Legal

Required: DOT FMVSS 218

Lacks required DOT certification for legal street use in the United States.

EU

Status: Not Street Legal

Required: ECE 22.05/22.06

Lacks ECE certification required for use in European Union member states.

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Check Price — $36.95

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