Some dirt and small rocks have locked inside parts ! Black big cannot open, you better buy the new one la....Dangerous!!!
Even you can take out the rock, damaged so much inside already...
You are using 原裝電變 , must be buy back the Black Big first, you're the first hand, must do more more practise ! After you get more experience, you can try to buy the brushless !
If you get the High Speed motor now ,your next problems is the car and parts damages.....
You are using 原裝電變 , must be buy back the Black Big first, you're the first hand, must do more more practise ! After you get more experience, you can try to buy the brushless !