Got some DT 4.2 rims on a set of Hope hoops.Have noticed on the back wheel the black paint is bubbling in places,especially around spoke holes.One part has flaked off and there is a white powder coming off the surface,a kind of corrosion? Anyone else had this? The wheels are only 1 year and a half old.Might have a word with Hope to see what they say.
Thanx Max
Bike Forum
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DT rims corroding?
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Posted 2 years ago #
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the white powder will be corrosion, however aluminium self seals when it corrodes so this *should* not undermine the material. I've had a set of 5.1s for a year and a half and have not noticed this.
worth a word with Hope. Without seeing it it's not possible to say if it's just aesthetic damage or not but I expect so. Still; shouldn't happen really.
Posted 2 years ago # -
Had exactly the same with a pair of 5.1d hope hoops,strange thing is
i have two pairs of the same wheels and only one with the corrosion!
Not spoken to hope but was told not to worry about it.Posted 2 years ago # -
I have the same issue on some 4.1's. Not really that concerned I just keep an eye on them to see if they get any worse.
Posted 2 years ago # -
A drop of Purple Extreme around each nipple on new wheels seems to stop that.
Posted 2 years ago # -
I must stress this is on the rims themselves not the eyelets or nipples.It seems to spread from the nipple area though.And there is a area on the sidewall that has bubbled and flaked off a bit.
Thanx MaxPosted 2 years ago # -
Yes, I've had the same on some 4.1's.
Sort of a pickling of the anodizing.
Posted 2 years ago # -
Sounds like a batch that got pulled out of the anodising bath too soon.
Posted 2 years ago #
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