Roll top, bearing rather flop!

From ABEC11 Micro camps what you would expect in general that they are hcohpräzise manufactured and run easily. Generally just these camps was supposed to be granted a certain "run-time", hence my vote comes only now.
After about 50 kilometers until-I have found that the rollers run wonderfully and especially show little wear. In the camps, however, it is so that it must be held on 2 of 8 roles that these rotate much more difficult than the rest of 6. This has been so from the very beginning and has a little disappointed me.