Bests & Worsts Reviews from Amazon

This fitness bike seemed like a good deal from all the people giving it 4 and 5 stars, and I think it would be a good bike if not for the poor quality control/factory assembly. While this bike does require some pretty simple assembly, the meat and potatoes of the bike (the crank, chain and flywheel) come pre-assembled from the factory. I've only owned this bike 4 days, and I've already found 2 significant problems from the factory assembly. The first problem was a obnoxiously loud clicking noise coming from around the flywheel as I pedaled. I traced this to the small plastic sensor attached to the flywheel that connects to the computer. The plastic was slightly deformed/broken causing it to catch every revolution and make a clicking sound. I simply disconnected the small metal piece (just one screw holding it) that connects to the flywheel and interfaces with the plastic sensor. This renders the computer useless, but I don't need it anyway. All it's good for is keeping time, and I wear a watch for that. Problem solved, no more clicking. The second problem was when I noticed a ball bearing on the floor, and an increasingly loud grinding sound when I pedaled. This time the sound was coming from the crank. Upon inspection I noticed significant play in the crank, so I disassembled it. The nuts were overtightened, causing the ball bearing assembly to become bent and disfigured, allowing the ball bearings to fall out of place. So how did a ball bearing end up on my floor before I ever took the crank apart? Well, inside, where the crank passes through the frame, there is a small hole that leads down the rear leg of the bike. On the bottom of that leg is another hole, and a bearing fits right through it. A bearing came loose because of the disfigured bearing assembly, and fell down the hole. It must have been damaged before I ever rode it, as the bearing could have only escaped before I put the rear stabilizing arm on. So now I need to go to a bike shop and get a new ball bearing set-up. I could contact Sunny, and see if they could send me one, but honestly I've had enough headache with this thing, and I don't feel like waiting for them to send me a part. This hassle could be completely avoided if the people at the Sunny factory took the time to realize that you can't just crank down as hard as you want on crank bearings. They aren't meant to take that kind of force. For anyone else with similar noises, I encourage you to inspect your bikes. I have a feeling this happens pretty often. Once I get this fixed, I think the bike will perform decently enough. But for anyone who doesn't have the tools or patience to fix things that shouldn't arrive broken, I'd think twice before making this purchase.