Hi
Love my henglong tank from outside, but power system seems not to the hobby level.
The tank would not slowly move, it either stuck there or suddenly jerk forward, especially when doing pivot spin in rough terrain - I guess everyone feel the needs to update this part.

How are following measures doing to improve the linearity, especially in low speed scenario.
1, upgrade motor to high speed/high torque 395s, straight swap, improve speed, slightly add some torque too.
2, upgrade to 12v toss in hobby level ESC, and receiver. add power.
3, upgrade to 540 motor, and add some gear structure.
I don't know if there are kits for easy conversion, but 540 offer bigger power and higher torque, logically it is the best solution to solve problem for both high and low speed..
4, change all bearing in side out.
5, use reduced rpm 370 motor, which kills high speed in exchange of linearity, I guess it is the last resort.

All of those measures are either add torque or power to the system, logically they are all correct to do, my question which one is a best / easy to achieve our goal.