How to buy a motorcycle at 18?

I'm 18.
I have a good paying job and was looking into buying a sports bike but I called an insurance company and they told me I would have to have full coverage to get a bike and at 18 I couldn't get full coverage because I have no history or whatever. All of this is confusing.

I was asking about a 2009 honda cbr600rr.
So does that mean I can't buy a bike? I wouldn't get approved for a loan so how am I supposed to afford a $7000 bike without cash in hand?

No one is gonna cosign with me so am I just outta luck?
I don't know anything about the process of buying a vehicle of any kind and this just confused me even more.

It's been my dream to get a sports bike ever since I was a kid and now that I can afford one, I still can't get one? Really?

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