Since November, I've changed my summer setup (AFS 20" style 87s) for my 18" style 69s. The thing is my reps came with hub centric rings that I had on for my 20s, but as I changed to my 18s I noticed how corroded and out of shape the rings have been. Now I'm wondering if this rings are necesary to have for when I put back my 20s come spring time. If so, does anyone know where I can pick up some quality rings that'll last longer than 6 months? Also what size would I need? IIRC they were 74.1mm?

Thanks for the help everyone!