From experiance I would check for burrs on the inside of the stem and sand them down before said twisting and wiggling. I have a irritating zigzag stratch on the (luckily) underside of my Ambrossio bars. Its deep but on the extra central part of the bars so I'm assuming (well its blind hope really)that its not going to lead to a structural problem!
From experiance I would check for burrs on the inside of the stem and sand them down before said twisting and wiggling. I have a irritating zigzag stratch on the (luckily) underside of my Ambrossio bars. Its deep but on the extra central part of the bars so I'm assuming (well its blind hope really)that its not going to lead to a structural problem!