I started using Flexx handlebars back in 2007 after reading an article in Dirt Rider by Editor Jimmy Lewis that described Flexx bars as "a revalve in a can." At the time, I was trying to get harshness out of my 2007 Honda CRF450R's front end - and these bars did the trick - and more!
I am on my 10th pair now - no kidding. I've never bent a pair, they always last well, and I honestly am so impressed that I am even more "pro Flexx handlebars" than ever after having thoroughly experimented with A-kit forks, many specialty triple clamps (XTRIG, NEKEN, Luxon, KTM Factory Clamps), Twisted Engineering carbon bars, XTRIG PHDS bar mounts, XC Gear MAKO 360 bar mounts, Scotts Performance bar mounts, etc.
Flexx handlebars are the best of the lot, dollar for dollar. Combined with other enhancements ^^^, amazeballs. Now I always start with the Flexx bars and see how they change the ride, then modify from there.