I Object!
Cooter,
I'm no lawyer BUT here's my opinion:
Don’t pay even if you had signed an agreement with the dealer, holding you personally responsible for damages.
Major purchase pressures of buying a new and unfamiliar vehicle puts buyers into a position of acting Under Duress, that is your being “encouraged” to test ride the bike when perhaps the seller should have told you that you didn't have to.
Factory authorized businesses should be responsible for both product and customer because sellers incur material loss from untrained acts of buyers often.
As long as you returned the product to the seller, you're removed from legal liability as a matter of law concerning theft, thus availing yourself and the product to the seller for repairs. After all, it is the sellers property and only in an appropriate court would the seller be able to present loss itemizations in an attempt to recover costs outside of the sellers own business insurance.
If you are required to comply with a legal settlement, pay only wholesale prices and appeal the ruling if the dealer gouges on labor costs by charging for example, labor incurred to order, ship and receive items.
Your future business relationship may sour with the seller but their responsibility began when they suggested that you use a product that belonged to them.