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Looks like a "DataTag" or similar type RFID sticker for tracing your bike - or parts of it. If it has been registered by the dealer when you bought it, then LEO can wirelessly scan parts of the bike and see if they get a ping.
Example being, somebody selling a bike suspected as stolen - LEO scan it and it pops up as registered to you not the seller. You then get it back.
That's probably why it was hidden under the sticker in the first place. You may find more of them on your bike if you look hard. They are meant to be concealed to make it harder for POS bike thieves....
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