The Sonic Ergo 35a Clip-On Aerobar from Profile Design improves upon its popular J2 bar providing a wider range of fit, all while coming in at an impressive price point. Its Ergo armrests offer an impressive range of adjustments for increasing rider comfort and efficiency while comfortably supporting the forearms during time trials and triathlon. The bars get their name from the extensions having a 35-degree ski-bend shape. This affords a comfortable and aero position that lets you put the power down while you shave seconds off your time.