Most sensored brushless motors don't seem to come with wires attached.  I had to learn to solder a brushless motor.  I figure I'll post a "how to" for people like me.   60 watt or hotter irons work better.  30w-40w will make you doubt your skills.  It's not your skills.  They just get cooled too much every time you solder.   I used 14 gauge wires ($1.50 for 1m each).  If you want to go smaller turn than 10.5t, thicker 12 gauge would be better.  (Tamiya ESC's wires are 16 gauge, so... b