I had the misfortune of buying a Santa Barbara Electric Folding Bike on Ebay about a year ago. It is a Riviera model. Shortly after I bought it the company went out of business. I had made contact with the company prior to my making the purchase & they gave me no indication that they would not be in business much longer.This makes the servicing & parts availability very difficult. I'm wondering if there are any others that share my plight? Luckily, I've only had to replace the 3-12 volt batteries so far.