Steelbird · Thunder X
Steelbird Thunder X
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.
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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Steelbird Thunder X full face with double visor.
Rider Profile & Intended Use
Where to buy
Price History & Trends
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Product Concept & Specifications
Steelbird (India)Engineering & Technical Analysis
The Steelbird Thunder X features a DOT and ISI certified ABS shell, ensuring high safety standards. It offers a comfortable fit with an Intermediate Oval head shape and a budget-friendly price. The helmet features a full-face design with adequate ventilation for riders.
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
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.
Part numbers
| Product style | MFR. product # | SKU | Availability |
|---|---|---|---|
| Black / | — |
STE-THX-BLK | instock |
| White / | — |
STE-THX-WHI | instock |
Available Colors & Graphics
Geo Pricing & Availability
| Country | Price | Availability | Source | Updated |
|---|---|---|---|---|
| IN | 3499 INR | In Stock | Steelbird Official | 2024-05-20 |
| US | 69.99 USD | Limited Stock | Amazon | 2024-05-20 |
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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.