At Banggood those motors have rave reviews, 12 five star ratings and 1 four star, nothing lower.
From Amazon:
Always good to get another viewpoint. I, and a couple buddies, have had the opposite experience. We briefly dabbled in the Dark Side and have since seen the light. The specs on Emax motors often vary from site to site. Trusting that the reviews on Chinese sites are from real customers is often a leap of faith. The construction, materials and the fact that you have to oil the bearings does not inspire confidence. Compare a SunnySky motor to the same in Emax and you'll see what we found. The SunnySky is only a few dollars more. It is perfectly balanced, surprisingly powerful and efficient. It has decent quality sealed bearings that don't need service for 40+ hours. Cobra would be another good motor to consider despite what that particular Amazon review said. Please understand that I am offering MY opinion. Not everyone will agree with it.
Most important of all is that when you build a quad it is YOUR build. YOU should make it your own. Build it the way YOU want to with the parts that YOU want to use. The members here have many different ideas and opinions on what they like. Once you make it yours, take it out and " Fly it like ya stole it".
