I saw a broken IRD Blackbird Comp drop bar at a shop. The break was a few centimeters from the edge of the stem, at the inboard end of the wing. The wing section didn't very thick to me, certainly appeared narrower than the 24 mm diameter of a normal round handlebar. Dunno about the wall thickness.
I saw a broken IRD Blackbird Comp drop bar at a shop. The break was a few centimeters from the edge of the stem, at the inboard end of the wing. The wing section didn't very thick to me, certainly appeared narrower than the 24 mm diameter of a normal round handlebar. Dunno about the wall thickness.