Didn’t your devastator kit came with motors already? Even if they are 6V, still can be used with X4 (12V). For motors it’s more about current (A), not voltage (V).
As I see - they have 2 versions:
- One with 6V 160RPM L Shape (yellow) motors (shaft 5.8mm)
- One with 6V 133RPM metal gear motors (shaft 4mm)
They use shaft couplers (D2, M2) to join motor with drive sprocket.
So it depends on coupler you have, but solutions that I could offer:
- Yellow motor. Seems like mounting differs from the one they using (L shaped), but I see chassis plate has additional holes and should fit in.
- Spider motor (245 RPM) shaft is 6mm. Because it’s off-center, you may need to drill some holes.
- RoboCar motor (400 RPM) shaft is 4mm. Dimensions are exactly the same as their 6V 133RPM metal gear motor. Should be drop-in replacement. And with this speed robot will be flying (which is more fun probably).
Dimensions of our motors: Is there any Documentation for this Motor - #4 by Arnas