Ouch, what year is your bike?
You can call Suzuki and ask them to look in their book and tell you what a mint condition "your bike" is blue book valued for.
That will give you a rough estimate of what your looing at getting if they write it off and they will pay you tax on top of that too.
Or if you take the cash payout they will have an adjuster look at your bike (If Suzuki is not on their "preferred list") and the salvage yard will give them a quote on what they would pay for it and you get the value minus what the salvage yard will give.
So say your bikes worth $5,000 to them.
Option A: $5,000 + tax and they take your bike
Option B: $5,000 - Salvage quote and you keep your bike.
Thats what they offered me and mine was all cosmetic damage. and my salvage price was $1,175.
Good luck and remember you don't have to accept their first offer

Its just an offer.