Is a long-tailed aero helmet faster?

We weigh up the pros and cons of long-tailed versus short-tailed time trial helmets when racing against the clock

Aerodynamics play a greater role on an indoor track than in any other cycling discipline.

The helmets on display at the 2016 UCI Track World Championships ranged from short, stubby aero lids to classic teardrop-shaped helmets with long tails.

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