I'm very happy with the Renthal Twinwall Oversized bars. I cartwheeled my bike and bent a stock handlebar mount but the bars are fine.
The revolutionary Twinwall® handlebar is an oversized diameter 1-1/8" (28.6 mm) handlebar which utilizes two tubes, one within the other, borrowing principles from aircraft design to give the best combination of lightness, strength and safety. Since their introduction in 1998, the Twinwall has been the handlebar of choice for more professional race teams and has helped more riders win championships than any other handlebar in the world.
The following features are integral to the Renthal Twinwall® handlebars:
Renthal Twinwalls are used by more factory teams than any other handlebar, including: Honda Red Bull Racing, Monster Energy Kawasaki, Pro-Circuit Kawasaki, Rockstar Suzuki Canidae, TLD Lucas Oils Honda, Team Honda Martin Racing, Team Kawasaki Europe, Team Suzuki Europe, Factory KTM Europe, HRC Honda Japan, KHI Kawasaki Japan and Suzuki Japan.
Renthal. We build championships™.