7k and 5k. Then I have 30k and 50k but they are too stiff :P. I ended to a small problem now. I try to fit those cups to the shafts, the traxxas style "lock screw" won't go through. Should I use only short one lock screw in there?
Im talking now about these screws here
http://www2.gpmd.com/image/t/trac4929.jpg