Profile Design T2 Aluminum Aerobar. When every second counts ensure your bike is equipped with the Profile Design T2 Aluminum Aerobar. Line up for your next time trial or triathlon bike leg with confidence that you'll be fully equipped to pedal fast against the clock. This clip on aerobar is part of Profile Designs' superb T series, and is aggressively designed for race oriented riders looking for the most aerodynamic positioning. The S bend extension places the hands low, while the 30mm rise allows for a variety of comfortable hand positions. The extension itself is construction of aluminum and can be adjusted in length from 180mm to 270mm. Furthermore, there's an additional world of adjustability to fine tune one's aero position courtesy of the J2 brackets and F 19a aluminum armrests. And for maximum versatility, the aerobar's clamp is compatible with both 31.8mm and 26.0mm bars.