My commuter / all-arounder is my 1996 Cannondale F-XXXX. I originally built it as an east-coast XC racer; following the practice of the time, it's super aggressive, running 3" of saddle-to-bar drop with straight bars, better for attacking on the climbs.
A few years back, I swapped a ~$15 steel 2" riser bar on to it, since it mostly sees commuter duty, and towing the kids to the park in the trailer. My commute feature a lot of street-to-sidewalk transitions, and the racy MTB is as fast over the 12 miles as either of the road bikes, because I dont' have to slow down for the bumpy/jumpy parts.
Some of them are bumpy/jumpier than others, and as I cleared one of them the other day, I thought, 'The bike doesn't seem like it's tracking right all of a sudden )
Slowed down to check things out, and discovered that the left grip was now a couple inches higher than the right one. The bar had failed at the lower riser bend, and bent UP. Possibly in the left-right juke, or the take-off of the wheelie-hop over the curb. Odd that it bent up tho, and not down; I must be torqueing the bars harder than I realize.



So I went to my LBS in search of an upgrade replacement. Nice 25.4mm MTB bars are getting a little hard to find, but I did find this nice Ritchey Logic 50mm riser: 670mm of shot-peened 6061, I think it should hold up a little better.

Top bar is the old one, bottom one is the Ritchey