Once you put these on your bars, old or new, you won"t believe the difference. Cushys pads will deliver the most comfortable ride that you can get out of your aero-bars and you will never "bottom out" on a pair. Cee Gees have been the Gold standard for this product category since 1989. Many infamous bike racers, world class triathletes and those all important weekend warriors would never ride without them. "There are those that have and those that will". Profile Carbon Aerobars: T4 Plus, T3 Plus, T2 Plus, & T1 Viper. Made in USA.