Gomadic Bike Handlebar Holder Mount System suitable for the Apple iPhone 5 - 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 Apple iPhone 5 device. Cradle is designed to accommodate the specific dimensions (124.2 x 58.7 x 8.2 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 Apple iPhone 5. Simple operation. Quickly, safely and securely installs in minutes.