I don't have a hyper mini, but I do have the crt.5. Almost the same thing. For onroad use, I mount my own foam tires. I use foam donuts from rc4less and newera. I used the 7400kv B50 hacker past Sunday on 4s A123. Plenty fast.
Here's a pick of the tires I made over the weekend mounted on Traxxas wheels. As you can see, they have a lot of meat. For even higher speeds, I like the 6 layer silver foam donuts from rc4less.
