39500
serial no on bottom bracket. "ML" over "39500" hand stamped. ML is probably medium large - the frame size. I replaced shimano 105 levers with the bump with ultrega levers. Probably a fairly unique combination. hydraulic disc. regular lever shifters (not electronic). Currently has Bontrager carbon wheels, Continental GP5000 tires (tPU tube setup), shimano double sided SPD clipless pedals, small toptube bag (underseat bag in photos has been replaced), the saddle is a Selle Italia Novus Boost Superflow.