Mueller-Korenek mounted a specially equipped bike with a massive gear and tethered it to a race car, which then accelerated to 100-plus kmh-the velocity necessary for the rider to turn over the cranks on her own volition. Then she unhooked from the car and stayed in the slipstream, smashing the pedals around to hit the highest speed possible under her own power. Her speed on her final mile on the Bonneville Salt Flats was 296 kmh. This short film from WSJ shows how Mueller-Korenek became the world’s fastest human on a bike.

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