As far as waterproofing, a clear plastic bag and a rubber band do the trick, and I can still see and work the GPS through the plastic!

Very sturdy motorcycle handlebar GPS mount matches up with RAM cradle

I use this to hold a GPS on my 2010 Harley Ultra Classic Limited

Worked great for my bike, used my phone as my GPS.

The mount supported my GPS and remained in position over all the road terrains I could find.

I love my Garmin Nuvi GPS.

I have this mounted to my ATV handlebars and it supports the GPS just fine through all the jumps, whoops, on bumps without slipping.

I have this mounted to my ATV handlebars and it supports the GPS just fine through all the jumps, whoops, on bumps without slipping.

Upon impact it gives enough to keep my precious GPS from taking the full force of the impact.