Garmin eTrex 10 20 30 Locking Strap Motorcycle Bike Mount (SKU 15579USA1) Dedicated locking strap motorcycle mount with bespoke holder for the Garmin eTrex 10 20 30 GPS. For square, oval & round handlebars, ideal for awkward shapes. Fits minimum diameter of 21mm & maximum diameter 40mm. A versatile, easy to use mounting option. Quick to fit Removable. Quality plastic design Mount is supplied with bespoke holder designed to fit the Garmin eTrex 10 20 30 Cradle slots directly on to the back of the device leaving all function areas free. What do I get? 1 x strap mount & 1 x holder