kokorest Relaxation Handlebar Cycling Bike Bicycle MTB Aluminum Alloy Triathlon Aero Rest Bar Clamps have a minimum diameter of 22.2mm (with shim) and a maximum diameter of 25.4mm Easy installation, complete set, ready to be installed and used right away. Suitable shaped pads for great comfort. Can be used for road bikes, long-distance mountain travel bikes, etc. Comfortable pads with U-shape handlebar for your arms' resting