It was ages ago, £45 I think with no BB. I was glad the buyer didn't pay!
I will have to read up on that ceramic coating some more.
Look up Cerakote, I can't remember if that's a coating or the name of the company, I was going to try the low friction coatings, for the skirts of pistons.
I haven't tried painting cranks[yet], I would try alodine dip then epoxy prime then paint or powder coat. I wouldn't be surprised if powder put up with heel rub better then anodising.
I painted the floors of my land rover[ali sheet], 2pk etch, 2 pk primer and 2pk top coat. I didn't expect it to hold up and only really painted them as I was painting some parts nato green for someone. One day I got a stone in the sole of my boot[not long after I painted the floor] and it scratched the paint a bit, through to the ali. After ten years quite a bit of the paint is worn away, but I don't think there is any peeling or flaking.
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