Take a look at your X-Mod motor (any stage) and then take a look at this.
http://www2.towerhobbies.com/cgi-bin...?&I=LXUZ08&P=7
Don't they look oddly familiar? The placement of the hole below the axle...the dimples on the size... the shape...
The only differences asetheticly are the stickers and the color of the plastic cap on the end
Do you think Kyosho made motors like these for Radio Shack?
What kind of specs do you think this motor has?