Features:
The motor provides high torques and high efficiency.
Aluminum heatsink is conducive to heat dissipation.

Rotor is removable and replaceable.
Large size bearing is of high quality.
High purity copper windings maximize efficiency.
Balanced and smooth rotor can get best reliability and maximum RPM.
The ESC is compatible with sensorless brushless motors.

The ESC is of high anti-interference ability.

Using advanced software interface to set up or update the software.

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. 24 * 35mm / 0.9 * 1.4inch (Diameter * Height)
Motor Shaft Size: Approx. 2 * 12mm / 0.1 * 0.5inch (Diameter * Length)
Motro KV: 4500KV
RPM: 60000
Max Voltage: 7.4V(2S) - 11.1V(3S)

Max Current: 24A
Max Watts: 300W
Connector: 3.5mm Plug
ESC Size: Approx. 35 * 25 * 14mm / 1.4 * 1 * 0.6inch (L * W * H)
ESC Constant Current: 25A 
ESC Burst Current: 90A / 10sec 
Battery: 2 Li-Po / 4 - 6 Ni-Mh Batteries (Not Included)
BEC: Yes 
BEC Output: 5V / 1A 
Power Connector of ESC: T Male Plug
Motor Connector of ESC: 3.5mm Bullet Female Plug  
Type: RC Part
Total Weight: 108g
Suitable Car: 1:16 and 1:18 Model Car

Package Includes:
1 x 4500KV 4P Motor
1 x 25A ESC
1 x Instruction Book

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