The huge ass stair gap? Sometimes the metal hardware kicks up sparks when it gets enough impact. There are also some frames that have metal supports and such. I think his skate might have clipped the end of the last stair, which could have some metal plate on it.hascoolnickname wrote:What happened in the video that made sparks?
I've actually seen completely plastic pieces make sparks, guess it's just friction. That may not be scientifically right though.