Features:
High purity copper windings maximize efficiency.
The stator is shorter, the wires are less, the resistance is lower, and the power is greater.

The motor provides high torques and high efficiency.
Maximizing energy conversion, it's of good heat dissipation and long service life.
Balanced and smooth rotor can get best reliability and maximum RPM.
Quick response to throttle operation.
Multiple protect function: cut-off protection of low voltage for lithium or nickel battery, overtemperature protection, loss protection of throttling signal and protection of motor blocked.

Specifications:
Material: Metal
Color: As Pictures Shown
Motor Size: Approx. 28 * 42mm / 1.1 * 1.7inch (Diameter * Height)
Motor Shaft Size: Approx. 3.175 * 15mm / 0.1 * 0.6inch (Diameter * Length)
Motor KV: 3100KV
Max Current: 47A
Max Power: 800W
Max Voltage: < 17V

IO:1.9A

Rotor Poles: 4 

Resistance: 0.0285
ESC Specification:
ESC Size: Approx. 36 * 25 * 18mm / 1.4 * 1 * 0.7inch (L * W * H)
ESC Constant Current: 35A 
ESC Burst Current: 120A / 10sec 
Battery: 2 - 3 Li-Po / 4 - 6 Ni-Mh Batteries (Not Included)
BEC: Yes 
BEC Output: 5V / 2A 
Power Connector of ESC: T Male Plug
Motor Connector of ESC: 3.5mm Banana Female Plug  
Type: RC Part
Total Weight: 176g
Suitable Car: 1:14, 1:16 and 1:18 Model Car

Package Includes:
1 x 3100KV Motor
1 x 35A ESC
1 x Instruction Book

Note:
There are some measurement error, thank you for your understanding.