
I put them on a big ATV I built and they break very easily. I use 2212/935kv motors so they don't spin very fast. But at the slightest touch of anything, the ends of the propellers break off. You'll have to stick with the cheaper Raycorps which seem to be a bit more durable. However, they have the advantage that they are very well balanced when installed with a 6mm nut.