Simple mount for Garmin GPS (in my case ZUMO 210/220). It should work on any motorbike with 22mm handlebar and min. 80mm distance between holders. Works fine, no vibrations, no problems :)

Instructions

Print it from PC Blend or PET, you'll also need the original bracket for Garmin GPS + 4 new screws M5x50 with conical heads + 4 nuts & washers. See pictures for details.