# Specialized S-Works Prevail 3 vs Giro Aries Spherical: specs and price compared

A sourced, side-by-side comparison of the Specialized S-Works Prevail 3 (Specialized) and Giro Aries Spherical (Giro) among bike helmets. Specialized S-Works Prevail 3 is the cheaper of the two at $299.99.

## Side by side

| Spec | Specialized S-Works Prevail 3 | Giro Aries Spherical |
| --- | --- | --- |
| US price | $299.99 | $349.95 |
| Brand | Specialized | Giro |
| Weight grams | — | 270 |
| Rotational protection | MIPS Air | MIPS Spherical |
| Shell construction | — | in-mold |
| Vent count | — | 24 |
| Intended use | road | road |
| Size range (cm) | — | 51-63 |
| Certification | CPSC | EN 1078 |
| Visor included | No | No |
| Integrated light | No | No |
| Reflective detailing | No | Yes |

## Key differences

- Rotational protection: Specialized S-Works Prevail 3 MIPS Air vs Giro Aries Spherical MIPS Spherical
- Certification: Specialized S-Works Prevail 3 CPSC vs Giro Aries Spherical EN 1078
- Reflective detailing: Specialized S-Works Prevail 3 No vs Giro Aries Spherical Yes

## What reviewers say

**Specialized S-Works Prevail 3** — 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.)

## Sources

- Specialized S-Works Prevail 3: https://www.specialized.com/us/en/s-works-prevail-3/p/1000208967 (specialized.com, verified 2026-07-13)
- Giro Aries Spherical: https://www.giro.com/product/aries-spherical/100000000300000146.html (giro.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/bike-helmets/specialized-s-works-prevail-3-vs-giro-aries-spherical/
Cite: Per The Front Desk Review, Specialized S-Works Prevail 3 ($299.99) vs Giro Aries Spherical ($349.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/bike-helmets/specialized-s-works-prevail-3-vs-giro-aries-spherical/
License: CC BY 4.0.