What size are ESC Fans?
 

I have a Hobbywing 120a Xerun and have lost a couple of blades off the fan, making it massively loud now, been trying to source a new one, and its proving difficult as I dont know the size. I realise that I can just measure it, but I'm at work and not at home, I'd like to get one when I'm on my way home if possible.

Any help appreciated.

AC

25mmx25mmx7mm if i remember correctly ..... although you have to change it if using larger cell packs due to voltage or something.