The Vivitar Pro Series Bike Handlebar Mount allows users to securely mount their action camera or GoPro to handlebars of various sizes. Designed with a polyurethane bushing, the mount reduces vibrations and ensures non-slip performance. Sizing is adjustable to grip handlebars from 0.75" (1.87cm) to 1.4" (3.55cm) and allows you to capture all the action from the road, trail and bike park.