Specialized
Specialized S-Works Prevail 3
$299.99Cheaper
Best Bike Helmets · head-to-head
A sourced, side-by-side comparison. Specialized S-Works Prevail 3 is cheaper at $299.99. Every spec and price links to its source.
Specialized
$299.99Cheaper
Kask
$300
On the specs we track, they're closely matched. The Specialized S-Works Prevail 3 is the cheaper at $299.99.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $299.99 | $300 |
| Brand | Specialized | Kask |
| Released | — | — |
| Weight grams | — | — |
| Rotational protection | MIPS Air | none |
| Shell construction | — | — |
| Vent count | — | — |
| Intended use | road | road |
| Size range (cm) | — | 50-62 |
| Certification | CPSC | CPSC |
| Visor included | No | No |
| Integrated light | No | No |
| Reflective detailing | No | Yes |
Sources — Specialized S-Works Prevail 3: specialized.com (verified 2026-07-13). Kask Protone Icon: kask.com (verified 2026-07-13).
Where the two actually differ on the specs we track (2 of 10). Matching specs are omitted.
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Based on one whitelisted hands-on review (Cycling Weekly), the S-Works Prevail 3 is an exceptional hot-weather helmet: airflow is 'unrivaled' even at 32°C and it ranks among the highest-ranked road helmets for safety by Virginia Tech. Downsides are weight (280g), a bug-catching open vent structure, and a high price ($300/£275). (1 sourced review, 1 lab-tested.)
Praised: Unrivaled ventilation, comfortable even in 32°C heat with no sweat in the eyes; Among the highest-ranked road helmets for safety (Virginia Tech); Comfortable fit with no bothersome pressure points; disappears on the ride.
Flagged: Not lightweight at 280g vs rivals like Kask Protone (230g); Large vents offer little protection against bugs; Expensive ($300/£275), among the priciest non-aero helmets.
No sourced tester review yet.