Biltwell · Bonanza
Biltwell Bonanza Anthracite
Quick Facts at a Glance
Verified Safety Snapshot
How this helmet’s verified certifications map to recognized safety homologations and crash testing.
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.
Verified Fit & Sizing Guide
Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.
Conçu pour un ajustement de type casque ouvert ; peut sembler serré sur les grandes tailles de tête en raison de la densité de la mousse EPS interne.
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
"Ride Like You Mean It"
Incarnant l'âge d'or de la culture moto américaine, le Biltwell Bonanza Anthracite est un hommage à l'esthétique vintage des Cafe Racers. Ce casque ouvert offre un look authentique avec sa visière distinctive en « batwing » et sa mentonnière minimaliste, complétant parfaitement les configurations rétro-modernes. Fabriqué à partir de matériaux durables et légers, il offre une protection fiable sans compromis sur le style ou le confort. La finition anthracite apporte une élégance mate et sophistiquée qui se distingue dans n'importe quelle collection. Que vous profitiez d'une balade en ville ou que vous exploriez les routes secondaires, le Bonanza vous assure de rouler avec assurance et caractère. Sa conception ouverte favorise une circulation d'air supérieure et un champ de vision dégagé, en faisant le choix idéal pour les motards qui privilégient la tradition et la performance.
Rider Profile & Intended Use
Où acheter
| Revendeur | Prix | Availability | |
|---|---|---|---|
| Amazon (US) | Voir le prix en temps réel | Voir sur le site | Voir le prix → |
Historique et tendances des prix
ℹ️ Helmetsan est un moteur indépendant de sécurité et d’aide à la décision pour les motos. Lorsque vous consultez des prix ou achetez via des liens de revendeurs, Helmetsan peut percevoir une commission d’affiliation, sans frais supplémentaires pour vous.
Product Concept & Specifications
Biltwell (United States)Engineering & Biomechanical Safety Analysis
Le Biltwell Bonanza utilise une conception de coque ouverte classique optimisée pour réduire la traînée aérodynamique tout en maintenant l'intégrité structurelle grâce à une construction en polycarbonate haute résistance. Sa géométrie interne présente une forme ovale intermédiaire avec une couronne profilée, garantissant un ajustement sûr sans points de pression excessifs sur les tempes ou l'occiput.
The Biltwell Bonanza Anthracite is engineered as a high-integrity Open Face protective system, utilizing a structural shell constructed from ABS. 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.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Interactive Size & Fit Finder
Conçu pour un ajustement de type casque ouvert ; peut sembler serré sur les grandes tailles de tête en raison de la densité de la mousse EPS interne.
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.
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Compatible Motorcycles for the Biltwell Bonanza Anthracite
Low-profile cranial coverage tuned for neutral cruiser posture, scenic riding, and urban cross-traffic awareness.
Data Confidence & Verification Provenance
Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.