Mio C220 Motorcycle Holder mod for under £5
First, you’ll need a cheap generic motorcycle holder.
China is again the way to go. So fire-up ebay, and search for a motorcycle holder. Any device will do, as we only use the handle-bar ring, and the plastic platform.
I found a motorcycle holder for the Samsung i900 Omnia for just £2.75 including P&P.
Next step is to clip all the protruding plastic bits that hold the Samsung in place, until you’re left with a flat plastic platform.
I’m sorry, I don’t have any before pics.
Now glue some neodymium magnets (AKA rare-earth magnets) on the platform, and the equivalent amount of magnets on the GPS it self.
I glued them with hot-glue and up to now it holds great. You can use other glues as well, but my guess is that they will start dissolving under the blazing summer-sun. Epoxy would work even better if you have it.
Just make sure to reverse the polarity so that they actually pull each other instead of pushing.
We don’t want that, unless you’re trying to build a self-floating GPS.
It won’t work.
The mod works fine even with just 4 magnets. I’ve used 8 just to be sure. The magnetic attraction is so strong that it’s very hard to pull them apart even by pulling with both hands. There’s no way to accidental lose it.