The set includes a 4068 2050KV brushless motor, a 120A ESC and a 9.0kg servo, which is perfectly fit for the 1/8 RC car. What you needed is all included in the combo, specially for RC car DIY hobbies.

Features:
High purity copper windings maximizes efficiency
Precision engineered for maximum energy conversion
Precision balanced rotor, smoothness for best reliability and maximum RPM
Super smooth and accurate throttle linearity
Mutiple protection features: Low voltage cut-off protection for lithium or nickel battery, Over-heat protection, Throttle signal loss protection, Motor blocked protection
High precision metal gear
Suit for 1/8 scale RC car

Motor Specifications:
KV(RPM/Volt): 2050KV
Max RPM: 50000
Max watts: 2200W
Max current: 105A
Max voltage: <21V
Diameter: 40
Length: 68mm
Shaft length: 20mm
Shaft diameter: 5mm

ESC Specifications:
Continous current: 120A
Burst current: 600A/10sec
Power supply: 2-4S LiPo / 4-8S NiMh
SBEC: 6.1V/3A
Power supply plug: T plug
Motor plug: 4mm banana connector
Cooling system: cooling fan
Programmable: YES
Size: 50 * 40 * 35mm (without cables)

Servo Specifications:
Operating Voltage: 6.0V-7.2V
Operating Speed (6.0V): 0.16sec/60° at no load
Operating Speed (7.2V): 0.14sec/60° at no load
Stall Torque (6.0V): 9.0kg.cm
Stall Torque (7.2V): 10.0kg.cm
Item size: 55 * 20 * 38mm (L * W * H)

Package Information:
Package size: 10.5 * 8 * 6.3cm / 4.1 * 3.1 * 2.5in
Package weight: 505g / 1.1lb
Brand gift box package

Package List:
1 * GoolRC 4068 2050KV Motor
1 * GoolRC S-120A ESC
1 * GoolRC 9KG Servo