Mine (all of them) are covered under my renters insurance.
Theft (in or out of the house), destruction, etc. Even if some uninsured idiot runs me over, it's covered. It's not covered if it comes off a bike rack on a car going down the highway (is covered if I run it into a garage).
Talk to your renters/homeowners. Mine did not require an extra rider for what I wanted, but with some companies I think it might.
As the above posters -
It also depends on your insurance carriers. I have Allstate and my bike is covered under homeowner's insurance. My ring is insured separately (Rider I believe it's called). Since I have Allstate Auto insurance as well, saves you money if you have coverage for both your car and house.
It would make sense to take pictures, save receipts for anything related to the bike such as pedals/shoes/gadgets. Or anything you have in the house. My mom does this for everything that is over $200 such as microwave, TV, stereo, computer, etc etc, all in one binder so there's no dispute on how much was paid, the warranty infos, receipts, etc. Wish i could be more like Mom!
I should do the same for my bike as that's probably the most expensive thing I ever owned, next to my car.
This can be a huge problem (as I am finding out) A lot of insurance companies will cover it if you purchase a separate rider ( I have one for one of my rings).
The insurance company (that I have been with since 1981) will not even let me purchase a rider.....harumph! Needless to say, I may be changing carriers. So much for loyalty
I wish our insurance companies were as progressive as they are in the UK..there appear to be plenty of companies there that offer options just to purchase bike insurance....
"You can't get what you want till you know what you want." Joe Jackson
2006 Cannondale Feminine/Ultegra/Jett
2012 Trek Speed Concept 9.5/Ultegra/saddle TBD