Had my new Goodyear Eagles fitted on the rears today. the fitter told me that the drivers side had corrosion on the inside of the wheel working to the bead of the tyre and that it might cause some pressure loss.
When I took a look I can see the corrosion clearly. I had the wheels off in the summer and gave them a good clean and they were in good condition then, my question is, could there have been a chemical reaction to something I've used to clean them (just Alloy Wheel cleaners) or is this just a common problem?

When I took a look I can see the corrosion clearly. I had the wheels off in the summer and gave them a good clean and they were in good condition then, my question is, could there have been a chemical reaction to something I've used to clean them (just Alloy Wheel cleaners) or is this just a common problem?