Cycling helmets / Troy Lee Designs / Black MIPS Mountain Bike Helmet Medium
Troy Lee Designs

Black MIPS Mountain Bike Helmet Medium

Updated on 2026-09-06

The A3 Uno is a premium half-shell helmet engineered for the rigors of mountain biking, enduro, and gravel racing. It utilizes a sophisticated dual-density EPP and EPS liner system to manage impact energy effectively, providing high-level protection for aggressive trail riders who demand the best in safety and performance.

This specific model comes in a sleek black finish and includes the MIPS brain protection system to reduce rotational forces during certain impacts. The lightweight construction ensures that even on long climbs or technical descents, the helmet remains comfortable and stable without causing neck fatigue or unwanted shifting.

Designed with a focus on ventilation and fit, the medium-large sizing offers a precise feel for dedicated cyclists. The interior padding is moisture-wicking and quick-drying, which is essential for maintaining comfort during high-intensity sessions in varied weather conditions across all-mountain and trail environments.

Black MIPS Mountain Bike Helmet Medium
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