Rumor I had is company that makes the Cc/Neu motors is who makes leopard motors. I willsay without a doubt they are a crazy bang for the buck. With the crazy CC sell I did have to buy a 1512 & 1518 lol. Nothing beats the real thing!
Here is video of my leopard 4074 1774kv on 4s with a 48mm prop.
www.youtube.com/watch?v=spPr80I-kpA
The 1774 has a very high pitch whine that sounds really really cool. The motor didn't even break a sweat swinging that 48mm prop. Once Istick my x447/3 on this cat it will be a winner!