Profile's T-Mag Clip-On Aerobars are the secret weapon for your fastest times and best finishes yet! They let you find the perfect aero tuck for maximum wind cheating and free speed. And, for super light weight, Profile utilizes forged AZ 80 magnesium in the brackets and extensions, which shaves 30% over aluminum. To further the weight savings, the unique mounting bracket uses no bolts to clamp the extensions, and Profile's F25 arm rests complete the package. You'll also love the comfortable S-bend extensions and the internal cable routing.