SAFETY ISSUE: 2022-10-26
This past week I noticed a possible issue when testing some new parts, and I believe it could affect all racks built in 2022. It is possible for the nut on the pivot pin to back itself out. This appears to be caused by a thicker washer stack after changing fastener suppliers at the beginning of 2022.
If the handlebar pivot feels loose, then this may be caused by this issue. There is a simple fix for this, which is to remove the washer under the nut. The washer under the head of the pivot pin should stay installed.
Remove the front wheel arms and carriage, leaving the rotating plate exposed along with the head of the pivot pin. - It may be possible to do this job without removing the arms and carriage if you have a second person to hold the assembly up.
Note in pictures to the left, there is a washer under the pivot pin head, and a washer under the nut. Only remove the washer under the nut.
Using a 3/16" hex key in the pivot pin head, and a 1/2" open end wrench on the nut, remove the nut and washer from the back side.
Put the nut back on and tighten. From experience, it is much easier to spin the pivot pin into the nut than to try spinning the nut in that small space.
Ensure the pivot pin is extending beyond the face of the nut.
Note in pictures to the left, there is still a washer under the pivot pin head, and no washer under the nut.