Outer Limits 4x4 Board

Posted: **Wed May 07, 2008 6:38 pm**

Out of curiosity

What exactly are typical torsion bars made from? Are they just a grade of steel?

Posted: **Wed May 07, 2008 6:46 pm**

Spring steel.

Its steel with a specific carbon content. I'm not sure what they also alloy it with, but it is then heat treated after shaping

Spring gurus/tech heads - quick TB question