I change the topcase between the '04 & the 12, since i only have one black topcase. So I can swap the keys out, I have the topcase key and a helmet lock key on a split ring, and move the to the split ring I have for each ignition key. As for carry a second key, I have both sets in my backpack, so I don't get stuck like I did on the '04 a few years back when the key disappeared. It cost me a bundle to have a key made from scratch!
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