Troy Lee Designs A1, A2 and A3—the benchmarks for protection, coverage and comfort in mountain bike trail helmets. The iconic OG A1 set the bar for modern open-face helmets, and continues to be the number one go-to for groms and adult riders looking for low-cost head protection. A2 raised the bar again, with more comfort, more ventilation and more aggressive styling. And the all-new A3 is simply a trail-helmet masterpiece—it’s built with ALL the features and is so comfortable that you’ll never want to take it off.
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