17.5mm - 20.5mm Stem Motorbike Mount & Dedicated Cradle for Garmin eTrex 10 / 20 / 30

Stem;

The central fork stem yoke mount has been developed for use on motorcycles where a handlebar mounting option is not possible.
Designed to fit sports, superbike, endurance and touring motorbikes using the cylindrical bore wall (steering head tube) of the fork stems.
Fits Fork Stems 17.5mm - 20.5mm (0.68" - 0.81")

Mount;
Clips into the integrated spine connection on a wide range of Garmin GPS and satellite communication handheld devices

To see if your Garmin handheld device is compatible with this spine mount, check the list below:
eTrex 10 / eTrex 20 / eTrex 30