147kph vanilla walker using only legs no thrusters, wheels or anything like that to reach those speeds, i give you the cheetah 6.0
https://steamcommunity.com/sharedfiles/filedetails/?id=3814828459 finally got it over 40m/s that's probably about the fastest I'm likely to get it with this setup, anything past 30m/s and the physics start to rebelling, you see it randomly juking side to side on its own or kicking the ground and bouncing, it would probably be faster on average if I reduce its max speed to around 30m/s, at this point its tuned to within an inch of its life for max speed which takes away from its lower speed stability