Bought a new Trek Madone 5.2. Paid a lot of money for it and was very excited to have it. Had it for 2 1/2 months. The sprocket bearings went out. Something to do with ceramics holding the bearings. They told me it nearly ruined my frame and Trek would not warrant. Trek knows this is a faulty design and will not back their product. I would recommend you buy the Specialized Rubaix instead. Frankly, in tests I couldn't tell the difference. Ask if the Rubaix has similar problems.