Troy Lee Designs A3 Halo 2026 MIPS Adult MTB Helmets Size:Medium/Large Maximum strap diameter 125 mm

Maximum strap diameter 125 mm (5 inches)

making it a perfect choice for both sport riders and touring enthusiasts alike

Made from 9k Carbon

K6 S is the essence of versatility

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Troy Lee Designs A3 Halo 2026 MIPS Adult MTB Helmets Size:Medium/Large Maximum strap diameter 125 mmTroy Lee Designs A3 Halo 2026 MIPS Adult MTB Helmets Head of the class, A3 leaves nothing to chance by setting the modern standard in protection and fit as demanded by Troy Lee Designs athletes. Equipped with Mips protection, the co molded EPP EPS design features sixteen vents to optimize airflow making for a helmet that is so comfortable it practically disappears on your head. Co molded EPP and EPS Mips B Series Rotational Impact Brain Protection