Navigon 2100 compatible Bicycle Handlebar Cradle Mount _ Holder for Bike with Lifetime Warranty Bike handlebar mounted base for the Navigon 2100 device. Cradle is designed to accommodate the specific dimensions (79.1 x 102.3 x 20.9 mm). Perfect for bikes (street or mountain) and also works great on motorcycles, ATV, 4-wheelers, golf carts, baby strollers, snowmobiles and more! 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. Tabbed T-slot secures holder to handlebar mount to prevent accidental release. Gomadic handlebar mount and holder are protected by Gomadic Lifetime Warranty.