Drive screws with 8~10NM when installing;Clamps have a minimum diameter of 22mm (with shim) and a maximum diameter of about 32mm (so it fits 26.5 mm and 31.8mm handlebars as well).;Material: Aluminum alloy + Sponge + PVC;Tube length: 40cm / 15.7in; Tube diameter: 22mm / 0.9in;Package Includes: 1 Pair Aero Bar Handlebar; 8 x Metal half-turn Sheet; 2 x Sponges

• UPANBIKE Road Mountain Bike Bicycle Alloy Triathlon Aero Rest Handle Bar Handlebar 31.8mm Clamps 2 Separated Tubes

UPANBIKE Road Mountain Bike Bicycle Alloy Triathlon Aero Rest Handle Bar Handlebar 31.8mm Clamps 2 Separated TubesUPANTECH