A few years ago, my 30 year old GB All Rounder bars broke at the stem. No fall as I was climbing a hill and when I pulled up on the bar it slowly hinged toward me. Wasn't easy riding the rest of the way home. I replaced them with a chrome-moly Nitto bar that has about the same profile as the old GB bar. The steel is thinner than the Al bar so the weight gain was not significant.