Help With Reversing Brushless Motor

[Edd]

Hey guys,

So i've finished my first build (the cyclone D4) and now I've finished it, I installed my motor with a heatsink and my esc and all the other electronics and it all works but my motor goes the wrong way. How can I reset and change it to the other way? I tried using the transmitter but ofcourse when the car goes forwards it has less power and backwards it has full power. So is there a way I can do it? Could I just change the polarity or would that damage the esc? Help would be greatly appreciated

Edd