Creaking Issue (Solved)
I purchased my IC4 in January 2021 and was able to get three good rides with zero noise before the constant creaking started. After researching between multiple forums and FB groups, this has been solved.
Purchase 1/4” x 1 1/4” neoprene washers (8).
Install on front and back of frame where silver hex screws are. One washer on top, one washer on the bottom where the frames meet. Tighten as much as possible without stripping the screws.
If you have additional squeaking:
Tighten pedals with wrench (assuming they are seated correctly and not cross threaded).
Ensure your seat post is tightened as much as possible without any give when you move it back and forth.
I hope this helps everyone out!