A nice option is the Tamiya Clamping hub.
It also comes in black.
I find that the thicker ribs offer more contact area for the wheel, keeping it more in tact after a big hit.
Set screw is optional, and not really necessary.
http://www.tamiyausa.com/product/ite...oduct-id=84196
http://www.tamiyausa.com/product/ite...oduct-id=54240