Hillclimbs or Hill Slides?
 

https://cimg4.ibsrv.net/gimg/atvconn...6a24fe5f40.jpg

This brave rider almost made it up to the top but it was the helper in the rain coat who paid the price.

https://atvconnection.com/articles/video-what-goes-up/

Physics. What goes up, must come down.