I use a Novak activ8 and novak 2pole 4.5t 550 size motor. I believe that 4pole motors are way overkill. They have too much power that poeple tune them down and they are super inefficient. They can kill a lipo very fast if your not careful. 2pole 550 motors provide plenty of power, super smooth and not hard on batteries. I like my kit to be at its full potential and not dumbed down so I can drive it. I know people will post and say I don't know what I'm talking about but there were more then one post that said to turn down the current limiter. That takes power away which mean you are over powered or you can't control the power so why have it.