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Studds · Marshall Pro D4

Studds Marshall Pro D4

DOT ISI
Studds Marshall Pro D4
Studds Marshall Pro D4
Studds Marshall Pro D4

Design Concept & Background

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Studds Marshall Pro D4 is a high-performance Open Face helmet engineered by Studds to meet high standards of safety and comfort. Inspect its detailed design background and specifications below.

Rider Profile & Intended Use

Riding Style Commuter
Helmet Category Open Face
Internal Fit Shape Intermediate Oval
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Where to buy

Best price $36.95 Amazon (US)
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Price History

Product Concept & Specifications

Studds (India)

Engineering & Technical Analysis

The Studds Marshall Pro D4 features a DOT and ISI certified ABS shell for enhanced safety, while its intermediate oval head shape provides a comfortable fit. The open-face design offers improved ventilation, reducing heat buildup and fatigue during long rides.

Fit & Shell Structure

Intermediate Oval Shape

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

[MATR.SHEL] Shell Construction ABS Outer structural material
[PHYS.MASS] Measured Weight 935g (2.06) Approximate medium size weight
[COVG.YEAR] Warranty 1 Manufacturer coverage duration
[OPER.ROLE] Primary Use Case Commuter Optimized riding orientation

Safety & Certifications

[SYS.CERT] Homologation DOT, ISI Certified safety standard
[SYS.PROT] Rotational Protection Standard EPS Mitigates rotational impact
[SYS.EQRS] Emergency Release Not Equipped Cheek pad quick removal
[SYS.LOCK] Retention Strap Double D-Ring Chin strap buckle style

Acoustics & Aerodynamics

N/A
Acoustics
N/A /10
Ventilation

Aero-acoustic profile pending track testing. Ventilation flow score awaiting CFD test.

[AERO.TEST] Wind Tunnel Tested No Optimized shell aerodynamics
[VISR.FOG] Pinlock Tech Not Included Anti-fog shield insertion

Technology & Convenience

[SYS.COMM] Comms Integration Generic Speaker Cutouts Intercom cutout availability
[FIT.GLASS] Glasses Friendly No Inner lining eyewear grooves
[VISR.SYS] Visor Shield Tech Single Visor Integrated drop-down sun visor
[FIT.LINR] Removable Interior Partial / Fixed Washable lining modules

Regional Legality & Compliance

🇮🇳 IN Street Legal
Required: ISI

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

🇺🇸 US Not Street Legal
Required: DOT FMVSS 218

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

🇪🇺 EU Not Street Legal
Required: ECE 22.05/22.06

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

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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