This is the Hobbywing XERUN SCT 3652SD G3 Sensored Brushless Motor. This 4-pole power house is great for light-duty short course, truck and monster truck sensored applications.

Note: Because this motor features a 5mm diameter motor shaft, it requires pinion gears with a 5mm bore. 

Features: 

• High efficiency with efficient cooling keeps the motor in a safe state.
• Adjustable mechanical timing from 20-40° allows for tuning to meet power requirements across various applications.
• The motor has no cogging effect, ensuring smooth operation at low speeds.
• IP5X-grade dustproof protection handles various dusty track environments.
• Dual sensor ports accommodate various wiring and layout requirements.
• Larger, more robust copper termination parts enhance power delivery and consistency.