Originally Posted by
Azreal911
A friend of mine had a 20 year old dahon and his rims aren't the best either, you can tell where the weld point is for the rim and it pinches a slight bit there at the point and the inside of the rim they just used like a large grit grinder to "smooth" our the weld joint there. He's running marathon racers there also and noticed it doesn't run completely round also because of the rim while I have kojaks and my better rims are perfect.
He can rotate the tire relative to the rim. If the defect moves with the tire than it is probably a tire issue, not rim.