An architect from Essex is hoping to make history by becoming the fastest person in the world - on a bicycle.
Neil Campbell from Colchester is hoping to beat the current record which stands at an astonishing 167 miles an hour.
He's going to make his record-breaking attempt in August but this week he's been training on a disused runway at Elvington near York.
Neil is already the fastest cyclist in Europe, but now he wants to the world title.
He rides a custom-silver Silver Eagle which has a stopping parachute to assist with breaking from 170mph to 0 in 400 metres.
Neil will be pulled along by a Porsche and then released at high speed.
He will then have to pedal furiously as he is timed over a 200m time trap.
Watch Sarah Clarke's ITV report here