Bike Motorcycle Cycle Handlebar Mount for Garmin eTrex 20 (sku 19600) Garmin eTrex 20 & eTrex 30 Bike Motorcycle Cycle Handlebar Mount. A simple, lightweight but very effective way of mounting your Garmin to your handlebars. Suitable for round bar / rail from 19mm up to 35mm diameter Includes the bespoke slide in holding cradle for the Garmin eTrex 20 & 30. GPS attaches to cradle in the same manner as the original holder. Cradle is held on a double swivel ball pattern allowing you maximum adjustment of your device. Secure to your handlebars with a twin screw fixing.