The HW38020438 COMBO-XR8 Pro G3 & 3652SD-5300KV-G3 is a Hobbywing brushless motor and ESC combo primarily designed for RC (radio-controlled) cars, particularly suitable for high-performance 1/10th scale vehicles. Here's a breakdown of its components:

1. XR8 Pro G3 ESC:

   • The XR8 Pro G3 is an Electronic Speed Controller (ESC) made for precision control of brushless motors.
   • It supports up to 4S LiPo batteries, providing high efficiency and speed control for competitive RC driving.
   • Key features include adjustable BEC voltage, advanced timing adjustment, data logging, and high reliability for handling powerful motor output.
   • The ESC is known for its durable, compact design, suitable for high-speed racing and high torque setups.

2. 3652SD-5300KV-G3 Motor:

   • This is a 3652-sized, 5300KV brushless motor engineered for high RPM and efficiency.
   • It’s optimized for high-performance racing, offering strong acceleration and stable power output.
   • Paired with the XR8 Pro G3 ESC, the 5300KV motor can provide impressive speed and handling, suitable for competitive off-road and on-road racing.

Together, this HW38020438 Combo provides a powerful, smooth, and responsive performance ideal for RC hobbyists seeking advanced speed control and reliability in their 1/10th scale racing cars.

The 3652SD-5300KV-G3 motor in the Hobbywing HW38020438 COMBO-XR8 Pro G3 typically has a shaft diameter of 3.17 mm (or approximately 1/8 inch). This is a standard size for many 1/10th scale RC motors, ensuring compatibility with most pinion gears designed for this scale.