I believe the mx bars is stronger because they have much thicker walls, wich is not ideal for mtb`s because of the weight. The OS bars is probably a result of combining strength and low weight on freeride and DH bikes. Stiffnes is probably an issue too. At least thats my theory.
I think azonic made their first OS bars in the late nineties.
I think azonic made their first OS bars in the late nineties.