I have a 2012 Kestral 4000SL frame available for sale (not complete bike as shown). Size is a 50cm. Only used one season before wife switched bike sponsors. Couple pain ships, etc, but otherwise in good shape. Looking for $600. Will negotiate (couple dollars more) on including a couple other parts if interested - Oval Concepts stem, Oval Concepts seat (virtually unused), SRAM Force front, Easton EA90 Stem (New). I can send other pics if you provide an email. Let me know if you have any questions.