Rawland Sogn touring bike in small size. Top tube is 50cm; seat is 40cm center to center and 45cm center to top. This is a rare size that is great for junior or shorter riders. Bike is perfect for touring or commuting. The bike is built up with a mix of Bontrager and Ultegra drivetrain parts. Velocity Synergy wheels with plush 650 semi-fat tires. You can read a review of the frame here: http://lovelybike.blogspot.com/2012/04/look-at-rawland-rsogn.html This is a beautiful bike that is conceptually similar to touring bikes by Rivendell.