As Euphoric1 indicated, at the very least, carry liability coverage on your sled as you should on your car. If for some reason you have an accident with another party and there are injuries, you want to have insurance to protect you financially. A unfortunate accident with injuries to others could really wipe someone out financially and is a risk that I sure don't want to take.
I have full coverage on my 2019 Summit 850 which includes liability coverage in the amount of $250,000 per person and $500,000 max per accident. I also have a $500 collision deductible. My annual rate through State Farm is $307. This rate will go down also as the sled gets older.