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#4 on this list
Ambush 2
Specialized
MIPS SL sliding pads and a shell that extends low at the temples. Fits a wide range of head shapes.
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- How we assessed it
- Specification researched

#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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Specs side by side
| Spec | Ambush 2 | Speedframe Pro |
|---|---|---|
| Maker | Specialized | — |
| Model | Ambush 2 | — |
| Protection | MIPS SL | MIPS, Dual-Density EPS |
| Ventilation | Optimized | Optimized Airflow |
| Peak | Adjustable | — |
| Retention | Integrated Fit System | 360-Degree Fit System |
| Product Type | — | Mountain Bike Helmet |
| Visor | — | Adjustable |
What our reviewers liked and didn't
Ambush 2
- Excellent fit for a wide range of head shapes
- Seamless MIPS SL integration, no creaks
- High level of coverage and protection for trail riding
- Effective ventilation for a full-coverage helmet
- Comfortable for all-day wear
- Premium price point
- Not the absolute lightest option
- Visor is not fully removable, only adjustable
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
Prices change constantly — the figure shown is the last verified catalog price, and the buy buttons always go to the current listing.


