I recently sold a vintage trek road bike to a heavy rider. The frame is a 52 cm wheels were true and had good tension before I sold it. Bike came back a few days later with the rear wheel completely out of true. It had not occurred to me that the rider maybe too heavy for the vintage wheels. wheels are 32 hole front and rear. Rider is probably 200 lbs ... frame size was right for him.
Is there anything I can do make sure the wheels stay true. Or should I just take the bike back and tell him unfortunately his is too heavy for the wheels and I can't say the wheels will stay true. Should I advise him to get a higher spoke count wheelset?