Not every person has a stock-fit body, so even when you've found bars you like you may need to adjust the height for a customized fit. The Aerobar Bracket Riser Kit is the solution for getting your Profile Design bars to hit just at the right point for an anatomically efficient riding stance. Whether you have the T+ Carbon, T+ Aluminum, or Sonic Ergo 35a, this kit can give you a boost of anywhere from 20mm to 70mm to fit your body and riding style.