I recently built up a pair of American classic hubs (Micro 58 front, 205 rear) to some Kinlin XR-300 rims.
Almost immediately after using the wheels the front wheel started to shudder while braking. I checked the wheel and made sure it was true (it is very true). I also tried another front brake, same problem.
I noticed that there was a small amount of play in the bearings. I understand that it is common for the AC Micro 58 to develop bearing play. I'm going to get another set of bearings, they are cheap and easy to install.
I was wondering if the bearing play is responsible for the shuddering, or is it a problem with the braking surface of the rim? I had a Mavic Ksyrium equipe front wheel that developed some bearing play, but it never shuddered like this wheel does.