Biltwell · Bonanza · Biltwell Bonanza
Biltwell Bonanza Street Grey
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.
Open face design; fits most head shapes but may require sizing adjustment for larger occiputs.
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
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Step into the saddle with the Biltwell Bonanza Street Grey, a tribute to the golden age of American touring that refuses to fade. This open-face helmet marries rugged durability with sophisticated style, featuring a matte grey finish accented by premium stitching and a refined leather chin strap. Designed for the rider who values tradition without compromising on safety, it offers an unobstructed field of view and exceptional wind noise management for its class. The interior is lined with moisture-wicking, removable washable padding that ensures comfort during long highway stretches. Whether you are cruising through city streets or carving mountain passes, the Bonanza delivers a timeless aesthetic and reliable protection, making it the definitive choice for heritage enthusiasts seeking a premium riding experience.
Rider Profile & Intended Use
Where to buy
Price History & Trends
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Product Concept & Specifications
Biltwell (United States)Engineering & Technical Analysis
The Bonanza utilizes a classic open-face shell molding technique that prioritizes structural rigidity through high-impact polycarbonate construction rather than modern aerodynamic streamlining. Its acoustic profile reflects the inherent trade-offs of an open-face design, offering superior situational awareness while maintaining ANSI Z90.3 certification standards for impact protection.
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
Open face design; fits most head shapes but may require sizing adjustment for larger occiputs.
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.
Available Colors & Graphics
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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.