I have the S500 quadcopter frame.
I am thinking about buying the emax xa2212 motor and using a 30 amp esc. Can I use 30 amp ESC with this motor? Here is the motor link : http://rcmumbai.com/index.php/product/emax-xa2212-980kv/ (http://rcmumbai.com/index.php/product/emax-xa2212-980kv/)
Yep, Any ESC rated at 20 Amps and above will work fine with this motor.