CSE060000500 Castle Creations Neu-Castle 1/8 Brushless 2650Kv Motor. The efficiency of a motor determines its quality. Higher efficiency means better design and high quality components. The higher the efficiency of the motor the more power it can produce before it overheats.
 Here’s a little math, we promise it won’t hurt. Say you are laying down 1,000 watts, (about 1 ¼ horsepower), and your motor is 70% efficient. That means you are turning 300 watts into heat. Ever grab a 300 watt light bulb? If the motor is 85% efficient it only burns 150 watts as heat. More power goes to the wheels and the motor runs cooler and able to put out even more power when needed.
 Intended for 4S (16.8 Volt) operation. Ideal for 1/8th buggy conversions. The 2650 is 68mm long.

Max Input Volts: 16.8
Amp Rating: 120
Weight: 370g (13.1 oz)
Motor Diameter: 39.98mm, 41.78mm with fins
Motor Length: 68mm
Shaft: 5mm
Bearings: Oversize ABEC-1 front and rear
Connector: 6.5mm
Note: Motor wires OK to shorten