A motorcycle GPS mount will enable you to use all of the GPS's features. You may think you can keep your GPS in your pocket but you won't be able to use it safely without stopping nor will you be able to see the screen. Mounting it on your bike will enable almost handsfree use once you have put your destination into the unit.
One of the more inexpensive mounts on the market, is the Gamin Biycycle Mount. The cost will depend on what GPS device you have but typically it ranges from $6 to $30. However, the Garmin Bicycle Mount is for bicycle's and therefore doesn't have vibration resistance. This means that your GPS will be exposed to large amounts of vibrations from your motorcycle, potentially damaging the unit.
Next is the RAM Mount which is great if you have the money. The RAM mount is made of a one-inch rubber vibration dampening ball which has no troubles being mounted on your handlebars. A double-sided clamp fastens to the rubber ball and the plastic cradle that holds your motorcycle GPS unit.
You can buy a RAM mount for around $40. You can also purchase more rubber balls if your feel the need for $10.
If you are looking for the ultimate in vibration absorption, then the TouraTech mount is the best option available. You will have to fork out about $100 but it has the best reverberation dampening technology that you will buy. So, if you take the protection of your GPS unit seriously, then you should take a look at this mount.
A Touratech Mount is the best GPS mount that you can use on your motorcycle. All Touratech Mounts are intended to be affixed to a crossbar on your handlebars, but they can be mounted in a number of cool ways.
This GPS mount is one that professionals such as enduro racers use because it is well known to keep the GPS very secure and very safe.