I buy in yuen long,not must left.!!! Also, the Black H2 inside the chip is blue colour,when the car is runnung,the sound is very smooth too.!!! I am using (6)tooth motor and (18) tooth for the fly wheel. Original is (5) and (19) tooth.
I buy in yuen long,not must left.!!! Also, the Black H2 inside the chip is blue colour,when the car is runnung,the sound is very smooth too.!!! I am using (6)tooth motor and (18) tooth for the fly whe ...