How would I make parts appear around the character after reaching a certain speed?

Hey so after you reach a certain speed, I want parts like this to appear around the character but I don’t really know how to do that, I tried putting it in a loop and cloning the part, setting its cframe, etc. But nothing happened.Here’s the video of what I want it to look like:

all u have to do is an if statement checking if the players walkspeed is greater or equal to the walksped u want to reach and add that to the player