Tough and durable center pole GPS mount. I replaced my 5mm spacer with this and so far it has never come loose in 800 miles of cycling. It doesn't even wobble, and I've never seen my GPS tilt or wobble. It was easy to install; Installed in 8 minutes. Depending on your stem (I have an aero shape) you can also mount it under the handlebars, but I like where I tucked it.
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