earlier this year I upgraded my tri bike to a set of 90/90 deep wheels. I built DT 350s hubs with a set of rims directly sourced from a reputable Chinese OEM and run them tubeless. I rode them very little outside, but noticed quickly that there’s a wobble at high speeds. It is not a lateral wobble like it has been discussed a few times here, the steering tracks perfectly true. It appears to be an imbalance in the wheels producing a vertical wobble, feels like the rim becomes elliptic at high speeds. It is annoying. I also feel like it is limiting my top speed. Possibly a total fabrication of my imagination, but it just doesn’t feel very fast.
Anyone experience something similar and have a solution? Could it be that the long TL valve stem + 60mm extension is too much weight in one place? Would it make sense to try and fix a counter weight?