The bontrager isozone rl handlebars turn potholes into pavement with bontrager39s race lite isozone vr cf handlebar fusing isozone pads directly onto the bar bontrager created a bar that beats the buzz without added bulk so your hands and arms will feel fresh after miles of riding crafted from custom butted shot peened 6061 t6 aluminum for the perfect balance of strength lightness stiffness and durability the race lite isozone has a solid yet svelte feel a short reach sha