White Residue on 4RT Wheel

[mcman56]

There is some kind of white residue primarily on the front wheel of my 2018.  It looks sort of like mineral deposits from where water dried.  Detergent, Isopropyl alcohol and acetone do not remove it.  A carnauba cleaner wax removes some but is way too much work for old hands.  The rag with cleaner turns black so maybe it is some kind of oxidation.  Is there an easy way to remove it?  

[Tr1AL]

11 minutes ago, mcman56 said:

There is some kind of white residue primarily on the front wheel of my 2018.  It looks sort of like mineral deposits from where water dried.  Detergent, Isopropyl alcohol and acetone do not remove it.  A carnauba cleaner wax removes some but is way too much work for old hands.  The rag with cleaner turns black so maybe it is some kind of oxidation.  Is there an easy way to remove it?  

Just buy a new rim and get the wheel rebuilt, Its the only way its going to be great again.

[kurtas]

Could try a maroon scotch brite pad

[faussy]

On the anodisation? What cleaner do you use? Sounds like oxidation. Id try some t-cut, cleaner wax doesn't have much abrasive in it

[mcman56]

I use Simple Green on everything.  "has a mildly alkaline pH of 8.5 to 9.5."  Can that corrode anodize?  I have not seen this on other bikes.

[RonH]

4 hours ago, mcman56 said:

I use Simple Green on everything.  "has a mildly alkaline pH of 8.5 to 9.5."  Can that corrode anodize?  I have not seen this on other bikes.

Simple green is NOT safe on anodized aluminum. It is too alkaline. Just Google the question and you’ll see. I once used it on a red anodized cassette on a bike and it faded it considerably.

[lemur]

Have it re-anodized because they didn't do a good enough job the first time.  Not just a 4RT problem, it can happen on any alloy rim when quality control lets something slide, such as on the pink rims that were suppose to be anodize red.