I called a shop to see about getting my bike fixed and they do not do bearings at all. They also wont do anything to bikes bought at a department store. The rear wheel is wobbly- the sproket/bearing is damaged or missing. I used it for a while somewhat wobbly but now the tires is hitting the frame and chain. So I can not use it as I would wreck the chain and incur more needed repairs. The guy who cuts my lawn said he would fix it- "when the weather gets nice". Well it is 54 degrees and sunny here- he must be busy with his girlfriend. Looking on ebay parts are very expensive for this bike. I had bought it at a moving sale and thought it had been an expensive bike. So I do not know if it is considered bought from a department store. I am not the least bit mechanically inclined. I feel stranded- even tho I have a car- I do pretty much via bike. Even if a facebook friend gives or sells me one of her kids bikes- I still would want this bike fixed at some point. It says california design, magna, Shimano equipte grip shift- 18 speed. The rear brake could also be made in better working order. Bikes have a lot of use- and if it comes to gas rationing- good mode to get some things done.