Gomadic Bike Handlebar Holder Mount System suitable for the Garmin Edge 305 - Unique Holder, Lifetime Warranty Cradle attaches to handle bars of any bike with tube diameters ranging from 1/2 - 1 1/8 inch (13-28mm). Unique rubber ribbed clamping system connects without the need of tools. Bike handlebar mounted base for the Garmin Edge 305 device. Cradle is designed to accommodate the specific dimensions (94.08 x 43.78 x 23.26 mm). Perfect for bikes (street or mountain) and also works great on motorcycles, ATV, 4-wheelers, golf carts, baby strollers, snowmobiles and more! Extensive use of special non-marking, non-slip and non-scratch materials protect the surface of both your handlebars and your Garmin Edge 305. Gomadic handlebar mount and holder are protected by Gomadic Lifetime Warranty.