The motors comes wired and with JST-XH connectors to connect to your stock Taigen board or other aftermarket systems. The new motors are 25k RPM motors and are 28mm in diameter by about 47mm in length so please make sure your motor will fit. The motor tabs also add an additional ~5mm as well, so add those to your motor measurements when measuring for fit. 

Notes:

Pinion placement on the 3:1 gearboxes requires the pinion to be farther out on the shaft while the 4:1 pinions require them to be much closer to the motor. Please make sure you know which gearbox you are installing these in before ordering as these pinions are pressed on and are difficult for the average user to adjust.