With a flattened upper hand position area, Bontrager's Blade Bar provides a larger hand contact area for improved comfort and feel. This great bar improves the comfort of ride-all-day, century machines, too. It's made of custom-butted 6061-aluminum, which offers superior strength and stiffness and weighs next to nothing. The shot-peened finish offers great fatigue life plus the etched positioning lines make lever alignment a no-brainer.