This bike is 53 cm and has been used lightly but has been a very smooth and enjoyable ride every time. The guys at the local bike shop say this is a great beginner bike and can easily be converted to a fixed gear as well. This bike has Dur Ace components with upgrades including a carbon fiber seatpost and fork and Mavic Cosmic Elite wheels. This bike is very light considering it is an aluminum frame.For questions or concerns text or call . I need it gone ASAP so all offers will be consideredListing originally posted at http