Trek Ballista Mips Road Bike Helmet

Less wind. More win. When speed is your top priority and every watt counts, reach for the helmet that'll cut through the wind to save you seconds. Ballista is Trek's fastest, most aerodynamically advanced helmet. The Ballista is light, cool, comfortable and engineered with a fully integrated Mips Air safety system that's designed to help keep you safer.Key Features:Trek's fastest, most aerodynamic helmet will save big watts and shave crucial seconds An excellent ventilation system makes this aero helmet surprisingly cool and comfortable The Mips Air system is light and cool and designed to improve comfort and protection The single-lace BOA® fit system is fully adjustable to provide a custom, 360° fit Rubberised sunglasses docking port provides secure and easy-to-use storage Bevelled front edge improves field of view while riding on the hoods and in the drops The Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership The 30-Day Unconditional Guarantee allows you to return your helmet if you're unsatisfied for any reasonOur fastest helmet ever Ballista is the fastest helmet in Trek's line-up. Its aerodynamic efficiency saves riders 10.1 watts of power and more than one bike length during a final sprint versus the Velocis in a standard one-hour test.Unexpectedly light The Ballista is light. At 275 grams, its minimalistic, low-profile design makes for a faster helmet that's lighter than ever before.Cool is fast Insight from computational fluid dynamic analysis helped optimise vent and channel design for more efficient airflow, creating a cool helmet.Mips Air safety system Less weight, seamless integration, improved sweat management and rotational force management technology from Mips provide better performance and a better experience on the bike.A better fit For that Goldilocks fit, the Ballista features a single-lace, 360° BOA® fit system with two lace height positions and three yoke positions – of

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