Renthal Twinwall Villopoto/Stewart Green

Renthal TWINWALL® Renthals revolutionary handlebar is a large diameter, 1 1/8 (28.6mm) handlebar.
Twinwall® are engineered for the toughest of conditions. The Twinwall feature a patented design that borrow aircraft design principles by utilising two tubes.
Providing the rider with a combination of Strength, lightweight and safety. Since their introduction in 1998, the Twinwall® have been the handlebar of choice for more professional race teams and has helped more riders win championships than any other handlebar in the world.

.