Heyya,
I used noname chinese bars that cost about 15 $ and weighted 110g/680mm for about a year, most of the time with rigid fork. So during one ride, I noticed that handlebar was loose , I tightened up and went to some difficult trails and on my way home I noticed that it's loose again, upon removal I spotted that it has deep marks from stem that might be cracks. From overtightening or stress, I don't know.
So, I want to get some decent 680mm flat bar from good manufacturers that isn't too expensive (seeing market flooded with light 15$ handlebars) and is HEAVIER, with more material. Any recommendations? (30-40$ with delivery~)