The Handlebar Holder is designed to prevent the handlebar and front wheel from rotating when a bike is mounted in a Park Tool Repair Stand. Updated to fit handlebars with a diameter up to 32mm and oversized top tubes up to 50mm, the HBH-2 works on almost any road or mountain bike Velcro strap is included to attach the Handlebar Holder to the frame. Very useful for hydraulic brake work when raising the front end for line bleeding