Kuryakyn License Plate Helmet Security Lock with Mount
Used Kuryakyn universal license plate helmet lock mount thing.
more information about it here: https://www.amazon.com/Kuryakyn-4248-License-Plate-Helmet/dp/B002F85VQS
Used on my bike for a few years, I misplaced the allen wrench for the bolts. It is a very common security bit so wont be hard to find. It is a Torx bit with a security pin in the middle.
The aluminum arrow thing is to hang helmets with the ratcheting style helmet straps.
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