Strong roll-off noise after crossbar change

Hello together. Well, I would need your help/your advice again. Yesterday I changed the handlebar at the front left. The whole thing was relatively easy, but I had to knock the joint out of the clamp. It was quite rusty. I know that you can only tighten the screws of the handlebar when the vehicle is back on the ground (loaded) Anyway, I only made the left side. I wanted to do the right side next week. Yesterday I didn’t do any, I thought it was unnecessary. Today I went off to do something. From about 25-30 km/h I heard a roll-off noise which became louder with increasing speed. Strangely I hear the sound from the front right (I had worked on the left) It sounds like a completely broken (grounding) wheel bearing. In addition, a kind of grinding noise is to be heard. Similar to when you no longer have a lining on the brake blocks and thereby rub metal on metal. S It’s strange, the noise is only heard when the vehicle rolls more or less. It’s gone when the vehicle is strong and braking. If the vehicle rolls and you drive snake lines, the noise changes, similar to a broken wheel bearing. I’m, frankly, perplexed. Think of me as a savvy screwdriver, have also learned car mechanics, but here I can’t make a rhyme, because before repairing the crossbar everything was tiptop. Greetings, Jan