OK so I am looking to buy a Brushless setup and I have ran into a question. I need to find a 13.5 motor.... My question is why are some motors only rated by their KV? I have read that there is No direct formula and that the numbers can vary when trying to do a KV to turn conversion. It seems like there are A LOT more options for motors when it comes to KV as opposed to Turn rating. Please let me know as much as you can and help me source a motor!