Key Features:The Supersonic bracket (previously known as the J5) is the first and premier model of the new generation Profile Design brackets,It offers easier adjustment and a greater fit range than anything that came before it,Pairing this bracket with the ergo armrest offers industry leading fit options and greater comfort,With the 35c extensions, this aero bar is suited to riders who wish to adopt an aerodynamic arrowhead hand position,The 35c extensions offer a 35-degree ski bend shape,This facilitates a slightly turned down wrist position to create a streamlined hand position. They are 400mm long and can be cut to size to suit nearly every rider,Armrest Offset: -70mm to -2.5mm in 7.5mm steps,Armrest Width: 124mm to 290mm in 18.5mm steps,Armrest Stack: 60mm to 70mm in 5mm increments,They are drilled for rear-exit cable routing.