Relativity in action

Normally spokes are straight, but apparently due to the rotation of the wheel the theory of relativity kicks in and spokes appear to be bended.
Quite logical due the fact that as the distance form the axis increases the speed of that point increases as well. Then we have something like x1=x2*1/sqrt(1 - (v*v) /(c*c)), dunno if I should take mass in account here, guess not.

Anyhow... spooky spokes!