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Bell · Custom 500

Bell Custom 500

VERIFIED TECHNICAL SPEC Open Face DOT, ECE 22.05 Fiberglass 1100g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Open Face
Certifications DOT, ECE 22.05
Measured Weight 1100 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
Rotational Protection ECE 22.05
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 visibility and airflow; requires separate chin bar for full-face protection.

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

"The Best Protection"

Embrace the raw spirit of American touring with the Bell Custom 500, an open-face helmet that seamlessly blends vintage aesthetics with modern safety engineering. Designed for the rider who refuses to compromise on style, its classic teardrop silhouette and premium leather accents evoke a timeless road presence. Inside, you'll find a meticulously crafted interior designed for comfort during long-distance rides, featuring moisture-wicking padding and a secure fit system. With robust ventilation channels that keep you cool without sacrificing aerodynamic efficiency, the Custom 500 is more than just protection; it's a statement of freedom. Whether cruising through city streets or carving open roads, this helmet delivers the confidence and clarity you need to ride with passion.

Key Highlights:

Fiberglass shell MIPS (Multi-directional Impact Protection System) Open face design Intermediate oval head shape Enhanced ventilation

Rider Profile & Intended Use

Riding Style Commuter, Touring
Helmet Category Open Face
Internal Fit Shape Intermediate Oval
Real-time price tracking active across international retailers.

Where to buy

Retailer Price Availability
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Price History & Trends

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Product Concept & Specifications

Bell (United States)

Engineering & Biomechanical Safety Analysis

The Custom 500 utilizes Bell's proprietary EPS liner construction optimized for open-face impact absorption while maintaining a lightweight profile. Its aerodynamic shell geometry minimizes wind buffeting at highway speeds, and the integrated chin bar design balances structural rigidity with reduced frontal drag.

The Bell Custom 500 is engineered as a high-integrity Open Face 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.

Shell Construction Fiberglass Outer structural material
Measured Weight 1100 g (2.43) Approximate medium size weight
Warranty 1 Year Manufacturer coverage duration
Primary Use Case Commuter, Touring Optimized riding orientation

Safety & Certifications

Certification DOT Certified safety standard
Rotational Protection ECE 22.05 Mitigates rotational impact
Emergency Release Not specified Cheek pad quick removal
Retention Strap Double D-Ring Chin strap buckle style
SHARP Impact Rating 5/5 Verified SHARP UK impact test score

Acoustics & Aerodynamics

Noise Level 95 dB Measured wind noise at speed
Ventilation 6/10 Airflow performance rating
Wind Tunnel Tested Not specified Optimized shell aerodynamics
Pinlock Anti-Fog Not included Anti-fog visor insert

Technology & Convenience

Comms Integration Generic Speaker Cutouts Intercom cutout availability
Glasses Friendly Not specified Inner lining eyewear grooves
Visor System Not verified Integrated drop-down sun visor
Removable Interior Not verified Washable lining modules

Regional Legality & Compliance

🇺🇸 US Compliant
Required: DOT

Meets all US safety standards

Regional Legality Guidance

US

Status: Compliant

Required: DOT

Meets all US safety standards

Certification Documents & References

  • DOT (US) - Department of Transportation - Reference
  • ECE 22.05 (EU) - Economic Commission for Europe - Reference

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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
Bell Official Specification
Safety Testing Agency
DOT, ECE 22.05 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-05-09