Aerobar Pg-241 With H.E.A. High Efficiency AerodynamicSpecifications:- Ud Carbon Fiber- Mounting With Traditional Stem 31.8mm- Width 420mm- Weight 580gr- S-Bend Adjustable Extensions Ø 22mm Ext. And 19.4mm Inter.- Internal Cable Routing On Handlebars And Extensions.- Height Adjustment With Included Spacers 5-10-30mm, Max. Height 85mm Center Handlebar To Armrest. (Avalible Extra Spacer Kit )- Adjustable Armrests Front To Back, Width, Height And Angle