The Turnigy TrackStar Sensored Brushless Motors offer outstanding performance at an incredible price!
Featuring a quality CNC motor can, hand-wound high purity copper windings and powerful sintered neodymium magnets, you wont find a better priced motor of this caliber anywhere else! The integrated sensor ensures smooth startups and acceleration.
The TrackStar brushless motors make a great upgrade for 1/8th short course trucks, monster trucks, buggies or anything else that uses 42 size motors.
Features: 
• Sensor-Based for Excellent Torque and Low-Speed Driveability
• Compatible with any Sensored/Sensorless ESC
• CNC Aluminum Motor Can 
• High Purity Copper Windings 
• Removable/Replaceable Rotor 
• Powerful Sintered Neodymium Magnet 
• Precision Engineered for Maximum Energy Conversion
 *Note: Sensor cable included
 Specs:
Size: 4270
RPM/v: 2400kv 
Poles: 4
Sensored: Yes (Standard 6 pin harness)
Max voltage: 15V (4S)
Max Current: 160A
Max Watts: 2300W
Resistance: 0.0048ohm
Shaft Size: 5mm
Can Diameter: 42mm
Can Length: 70mm
Weight: 329g