'Diamond cut' wheels - what a pain!
Discussion
Three years ago I changed my rear tyres on my 3 series (fitted with diamond cut wheels) and none of the alloys had any corrosion. I only changed the rear tyres as one had a puncture. Interestingly within a couple of months the corrosion set in and thought that the salt on the road, possibly sun damage or maybe stone chips could be the cause. December 2021 my front tyres at 48,000 miles (car now 5 years and 6 months old) needed changing due to wear. Both front alloys had no corrosion at all. Now again a coupe of months on the corrosion is setting into the front alloys. Conclusion is now 100% clear that the damage is caused by the tyre fitting process. Appreciate some cleaning products can also do this but I always hand wash the car and wheels with a hot wax and never curb the wheels so the finger is definitely pointing. Can only assume most garages do not have the best equipment to gently offer the right care for these sorts of alloys and the public will continue to think it is the salt, stones or age causing the damage to happen but the truth is a little different.
Its nothing to do with the tyre fitters, the rim corrodes the lacquer sticks to the tyre. A lot of force is needed to pop the tyres onto the rims - somewhere around 90psi. The same applies to removing the tyres force is needed. The actual cause is the diamond cutting itself, no painted rim suffers corrosion on the outer face, this is simply because paint sticks to a good surface, it simply cannot stick to a polished surface.
Three years ago I changed my rear tyres on my 3 series (fitted with diamond cut wheels) and none of the alloys had any corrosion. I only changed the rear tyres as one had a puncture. Interestingly within a couple of months the corrosion set in and thought that the salt on the road, possibly sun damage or maybe stone chips could be the cause. December 2021 my front tyres at 48,000 miles (car now 5 years and 6 months old) needed changing due to wear. Both front alloys had no corrosion at all. Now again a coupe of months on the corrosion is setting into the front alloys. Conclusion is now 100% clear that the damage is caused by the tyre fitting process. Appreciate some cleaning products can also do this but I always hand wash the car and wheels with a hot wax and never curb the wheels so the finger is definitely pointing. Can only assume most garages do not have the best equipment to gently offer the right care for these sorts of alloys and the public will continue to think it is the salt, stones or age causing the damage to happen but the truth is a little different.
Richard-jyih4 said:
Three years ago I changed my rear tyres on my 3 series (fitted with diamond cut wheels) and none of the alloys had any corrosion. I only changed the rear tyres as one had a puncture. Interestingly within a couple of months the corrosion set in and thought that the salt on the road, possibly sun damage or maybe stone chips could be the cause. December 2021 my front tyres at 48,000 miles (car now 5 years and 6 months old) needed changing due to wear. Both front alloys had no corrosion at all. Now again a coupe of months on the corrosion is setting into the front alloys. Conclusion is now 100% clear that the damage is caused by the tyre fitting process. Appreciate some cleaning products can also do this but I always hand wash the car and wheels with a hot wax and never curb the wheels so the finger is definitely pointing. Can only assume most garages do not have the best equipment to gently offer the right care for these sorts of alloys and the public will continue to think it is the salt, stones or age causing the damage to happen but the truth is a little different.
Yes, we know. You've told us / posted this 3 times in 3 days now. No need to keep posting the same reply.Gassing Station | General Gassing | Top of Page | What's New | My Stuff