Bifold door rides bumpy

Thank you for writing in. If you haven't already, you might want to try and adjust the bottom door pivot to raise the door up a little. This could smooth out the door travel. If that doesn't help, your bottom track might indeed be damaged and need to be replaced. See the tracks I have listed on this page; review their dimensions and see if any match what you have. You also might want to check the door pivots and roll guides as well--see again the potential replacements we have listed for you. Let me know if you have further questions.