Why do not the four wheels of the car be completely closed?
In fact, should be made completely closed, the front wheel wheelbase to reduce or increase the shell soon it! I think it would be better to look up
Disassembly tires are not convenient ah.
The front wheel needs to turn, can not be closed (a larger range, the front wheel wrapped up on both sides of the drum bag is very powerful) rear wheel can be closed (the rear wheel does not need to turn, because there is differential this thing)
It is also a problem to change the problem if it is not so turned
