My husband sold a bike on Facebook market place. It was a frame he bought secondhand himself and added the rest of the kit to it. He was really transparent with the frames history and the work he had done to it. There was an issue on the frame which he did point out. The bike was in perfect working condition, with of lot of decent kit on it and my husband was still happy to ride it he just has that many other bikes we literally didn't have room for it. The guy who bought it went away and took it to some one and spent £150 having it stripped and inspected and has come back saying there is damage to the forks and he wants his money back. This was 2 weeks after he bought it and is now threatening legal action. Does anyone know where we stand legally?