Today in tools.
https://www.youtube.com/watch?v=BuPJoA9gIro
Warning. The wind noise on this second one is excuriating.
https://www.youtube.com/watch?v=7pkDxQK3bDc
Any bike will take you downhill at 80kph. The difference is that all those other bikes also allow you to go uphill.:slap: