The GEPRC SpeedX2 2105.5 2650Kv is a quality motor especially suitable for 3-4" Cinewhoops or 4-5" ultralight drones. The motor weighs only 22 grams and that includes the 15cm 22AWG cable. Round magnets, quality bearings and durable material are standard. The motor uses a conventional shaft with M5 threads.
When combined with a 3-4" propeller, we recommend using 6S batteries. When using a 5" propeller, a 4S battery is recommended.