Features: High efficiency with efficient cooling keeps the motor in a safe state. Adjustable mechanical timing from 20-40 deg 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. Specifications: KV: 4500KV LiPos: 2S No-load Current (A): 6.1A Diameter / Length (mm): D=36.6mm (1.44") / L: 53mm (2.09") Shaft Diameter / Length (mm): D=5mm (1/5") / L=12mm (0.59") Bearing Size (mm): Front: D13xD5xT4 / Rear: D11xD5xT5 Poles: 4 Weight (g): 189g Applications: 1/10 Short course car (2WD), Buggy, Rally