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#5 on this list
Speedframe Pro
Fox Racing
The value benchmark. Dual-density liner, MIPS, and a fit dial that survives real abuse.
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- How we assessed it
- Specification researched

#6 on this list
Super Air R Spherical
Bell
Removable chin bar turns one lid into a trail helmet and a light full-face for shuttle days.
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Specs side by side
| Spec | Speedframe Pro | Super Air R Spherical |
|---|---|---|
| Product Type | Mountain Bike Helmet | — |
| Protection | MIPS, Dual-Density EPS | — |
| Ventilation | Optimized Airflow | 18 Vents (19 full-face) |
| Visor | Adjustable | Adjustable with goggle guide |
| Retention | 360-Degree Fit System | — |
| Convertible | — | Removable chin bar |
| Safety Tech | — | Spherical Technology powered by MIPS |
| Retention System | — | Float Fit |
| Weight | — | Mid-range for convertible |
What our reviewers liked and didn't
Speedframe Pro
- Comprehensive protection with MIPS and dual-density foam
- Excellent value for the features offered
- Robust and reliable fit adjustment system
- Effective ventilation for trail riding
- Comfortable padding, removable for cleaning
- Not the absolute lightest option available
- Ventilation is good, but not class-leading
- Styling might not appeal to all riders
Super Air R Spherical
- Truly versatile with secure, removable chin bar
- Advanced Spherical MIPS safety technology
- Excellent ventilation in both configurations
- Comfortable and secure fit for varied head shapes
- Lighter than most dedicated full-face helmets
- Higher price point compared to dedicated half-shells
- Heavier than most dedicated half-shells
- Not as robust as a full-on downhill helmet
Prices change constantly — the figure shown is the last verified catalog price, and the buy buttons always go to the current listing.


