Originally Posted by
Team Grid RC
The ball bearing is a M5x13mm. 1/8 motor for cars application have 5mm shafts. If you decide to put a special motor in with either a 4mm or 6mm shaft, just change out the bearing to a M4x13mm or M6x 13mm.
If you don't like the ball bearing, you can also take it out.
The other thing we highly recommend is to use more than two mounting screws if you are going to racing on a bumpy and jumpy track. With three or more screws, you have added insurance if one comes loose.
Oh, NOW i see! I don't know why, but i thought the bearing was larger than the motoraxle, so that the shank of the piniongear was to go inside the bearing. Very nice construction anyway, i like the extra support it provides (or the thought of it as i don't one this mount yet
)