It isn't hard.... By math on paper.... I put a 6900kv motor on my TT01 before.... So damn fast that I wouldn't surprise it could do 100 ... But zero control .....
Guess what to my X0-1, I only played once....and without unlock the power ...
Lots of 美佬 post their speed run on YouTube.... Damn boring video .. Kind of like rolling a civic downhill...lol
How to find a ultra long straight and flat road in HK allow you to do that is another problem....