The devil is in the details.
It also requires a fairly strong pedaler, requiring about one horsepower to operate
One horsepower is 746 watts. The best time trialists in the world (Fabian Cancellara, Tony Martin, etc.) only average 550-650 watts during short time trials, prologues and pursuits, which are races that last 4 to 10 minutes. For long time trials lasting an hour or more, they produce 450-500 watts. The best road sprinters can produce over 1500 watts, and the best track sprinters can produce 2300-2500 watts, but they can only do it for 10 to 15 seconds.