Originally Posted by
Al1943
Your problem is probably due to insufficient spoke tension to keep the wheel true. Have it re-trued with higher tension or learn to do it yourself with the proper tools and instructions. This is a common problem.
Al
+3
I'm also barking up the low-tension tree. I'd also suggest going over the wheel with a fine-toothed comb - looking for any sort of structural damage. Depression on the rim? Crack around a spoke-eyelet?
Good luck.