- Steel gears driving gearbox
- Tracks
- Sprocket wheels
- Idler wheels
- Barrel
The little motors run quite hot at 40°F above ambient. It stabilized at 110°F in the 70 deg cool basement. It is not what I would like when running the tank outdoor at 90+ temperature. However, it does give the Leopard decent road speed.
I did a quick upgrade with the excellent Heng Xin all ball bearing gearbox. You may notice that I did not use the red motors. The motors are Fxfans 390 motors which have identical performance to the red motor. I just like the electroplated case better.
The Heng Xin gearbox uses 8 DGB (deep groove bearing). It is very quiet and vibration free. The 390 motor has plenty of reserve power to drive the metal tracks. This gearbox costs about $90 for US stock and about $65 if you can wait for shipping from China. It is one of the best upgrade investment I made.
With the TK-6.0S RC system, the proportional control is a large improvement over the 5.3 version I had on older tanks. Overall, I am happy with this purchase.



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