Fantastic! these motors are silky smooth and have enough punch with a 4s pack and simple props. Here’s the real selling point, these are by far the quietest motors I have ever had, my 4 inch quad sounds like a stealth unit! I’m hooked! In the service with cyclone FPV is exactly what I would expect, an American Texas company with their heart in the right place to help the customer and make sure we’re all having fun!