Listed is a used Trek Madone 5.9 road frameset, in good shape. This frame is currently set up to run Di2 wired drivetrains. It is labeled as a 52cm: the seat tube measures 44cm ctc, the effective top tube is approximately 53.5cm ctc, the head tube is 140mm, and the standover is approximately 29.5" at center. It has seen use, it shows some scratches, scuffs, and rubs typical of use and age, but has no damage. One thing to be aware of is: the rivnuts that held the battery mount beneath the BB shell in place spun in the frame, I removed the old battery mount by popping out one bottom bracket bearing and holding the rivnut steady with needle-nose pliers while I removed and reinstalled the mounting bolt. The same will have to be done if you'd like to reinstall a battery in this same location or switch the frame to cable guides. The bottom bracket bearings are for 24mm spindles (Shimano Hollowtech II), the head tube is 1-1/8", the dropouts are 100/130mm, and seat post is integrated, and it is for rim brake.
The frame is very light, very fast, and sharp when built. It is clean and presentable overall, and ready for another life.
Please inspect the images for detail. Shipping is for the contiguous United States only, unless you can buy through eBay's Global Shipping Program. Please message me with any questions, thanks for looking!