Ultra Racing

[m911gt]

Originally Posted by Ryu

I am not sure is the meaning of power of its radius means the thickness of the bar?
If so, I should have went for thicker version 23mm.

It says the fourth power of it's radius because the formula takes into account the bar's polar moment of inertia (J=(pi*d^4)/32) I believe.

[Ryu]

Originally Posted by m911gt

It says the fourth power of it's radius because the formula takes into account the bar's polar moment of inertia (J=(pi*d^4)/32) I believe.

Now I got it, thanks for the explaination. That makes 23mm version even more tempting lol.