Profile CBX Pro aerobars are made with a full carbon fiber wing base, and full carbon fiber aerobar extensions. This is Profile Designs lightest one piece aeroboar system. These aerobars are fully adjustable for custom fitting. Features; internal shift cable routing 360 degree rotational arm bridges 90mm in length adjustment 25 degree andgel adjustable f-22 armrests 31.8 mm clamp available in 40cm & 42cm weight: 830 gms