Motors with a stator diameter of 25 to 28 mm – such as 2506, 2507, 2806.5, 2807, 2808, 2810, 2812, 2814 and 2816 – for 6–9" builds. Sizes 2506 and 2507 are used for 6" long-range and heavier 5–6" drones, while 2806.5 to 2808 motors are the standard for 7" long-range.
Larger 2810 to 2816 motors can handle 8–9" propellers and heavier payloads, such as Cinelifters or drones with larger batteries. Around 1,300 KV is typical for 7" on 6S, while 900–1,150 KV is suitable for 8–9" propellers.