Bontrager Circuit

Bontrager Circuit
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Styled for maximum airflow and go-fast good looks, the lightweight, 21-vent circuit was designed using computational fluid dynamics, for an air-gobbling shape that delivers superb ventilation and unbeatable air flow.

- Lightweight road helmet for superior performance
- 21 CFD software-enhanced vents for maximum airflow and efficiency
- Premium, wicking fit pads
- One-hand adjustable Ziptite fit system
- Three sizes ensure the best fit
- In-molded strap retention system with lockdown strap adjusters
- Wicking fleece