On a scale of 1-10 how serious is small hair line crack in the rear wheel?
The cracks are less than 1 mm in length and start where the spoke enters the rim. The cracks are so smooth when you run a razor blade over them you can’t feel them. The wheel is still true, but occasionally creeks (not sure if the cracks are causing the creeks). Should the wheel be replaced ASAP or should I just keep an eye the cracks and wait for them to get worse?