Nay worries mate. Glad you asked as I had not noticed that my primary mount is actually cracked..wondered why it didn't seem to be mounting correctly. I have four of these mounts and this is the second I have broken in over a year. I train with two and used two during Romaniacs this year and use only one for the rest of the time. I would advise having at least one spare with you as its plastic and it does wear out over time. And if your pushing your limits to challenge oneself then you might break one like I do.
If you look on the back of the Etrex/Oregon/Montana you will see a indent at the 'bottom', the mount has a tab that snaps into this indention to 'lock' it in place. To remove it you press down on the tapered (right word?) end of the mount and slide the gps up and out. Over time the plastic wears and you have to tap it out with you hand.
One added security bit I do when I stop for a a coffee or lunch when out shredding tires and making dust and roost I slip one of my gloves over the gps and set the other on top so no one sees it. Knock on wood no problems so far.
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