When replacing the fourth tire, the motor ceased to move, it was sent out for repair, it was returned in checked and completed, but again after the motor did not move, if you inform the manufacturer again to that effect, send a replacement item It was. (I wish quality control a little more.
10 months. Perhaps the number of times of use is about 20 cars for ordinary cars. The motor had gone idle in and the shaft no longer turns to the left or to the right. I wonder if it is useless because the price is price. Sorry.