Most aero road helmets save 5–15 watts at 40 km/h compared to a standard well-ventilated road helmet. The exact savings depend on the specific models compared, rider position, and head angle. At 30 km/h, savings are roughly 3–8 watts. Below 25 km/h, the savings drop to 1–3 watts and are generally not noticeable.
Cycling Helmet · Aero Road Helmet
How many watts does an aero road helmet actually save?
Related gear types
If this answer nudged you toward a different style, these guides compare specs and trade-offs.
Road Cycling Helmet
$50 – $350
Lightweight, well-ventilated helmets optimized for road cycling speed and endurance.
lightweight constructionextensive ventilationsleek aerodynamic profile
Time Trial / Triathlon Helmet
$200 – $600
Full teardrop-shaped helmets providing maximum aerodynamic advantage against the clock.
elongated teardrop tailintegrated visor or shieldminimal ventilation
More questions
- Are aero road helmets too hot for summer riding?
- Can I use an aero road helmet for time trials?
- Do aero road helmets provide less protection than standard road helmets?
- Is MIPS worth having in an aero road helmet?