Wheel damage... curb rash or by tire installer?

jmanB45 · 05-09-2023, 05:31 PM

Just had new tires installed on my 400M wheels and noticed damage on two of them that I don't think was there before. The tire shop is adamant that they did not cause it.

Looking for opinions here... is this curb rash or caused during tire installation?

alohasurftoad · 05-09-2023, 06:16 PM

it's definitely not curb rash as the outermost edge/lip is free on damage.

present day tire mounting machines, such as a Hunter, typically do not touch the part of the rim where damage is shown. if they were using a mounter/dismounter that is more archaic or the installer is not experienced, damage could be caused in a variety of ways.

you can tell the rim was spinning or whatever was scratching it was rotating around the rim.

cfm56d7b · 05-14-2023, 12:29 PM

This is one of those unfortunate instances where repairing the wheel and moving on may be the best option. Without before and after photos the burden of proof will be very difficult to establish. That's the lesson learned: photos and more photos.

jmanB45 · 05-15-2023, 04:37 PM

cfm56d7b, yes I came to the same conclusion. Lesson learned.

Fortunately the damage is not visible unless you go looking for it

05-09-2023, 05:31 PM	#1
jmanB45 Private First Class 144 Rep 124 Posts Drives: 2018 BMW 330iX Sedan Join Date: Apr 2022 Location: Toronto, ON iTrader: (0) Garage List 2018 BMW 330iX Sedan [0.00]	Wheel damage... curb rash or by tire installer? Just had new tires installed on my 400M wheels and noticed damage on two of them that I don't think was there before. The tire shop is adamant that they did not cause it. Looking for opinions here... is this curb rash or caused during tire installation? Attached Images Last edited by jmanB45; 05-09-2023 at 05:32 PM.. Reason: Clarity
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05-09-2023, 06:16 PM	#2
alohasurftoad Brigadier General 3077 Rep 4,325 Posts Drives: 440i gran coupe w/mppsk Join Date: Apr 2015 Location: hawaii iTrader: (0)	it's definitely not curb rash as the outermost edge/lip is free on damage. present day tire mounting machines, such as a Hunter, typically do not touch the part of the rim where damage is shown. if they were using a mounter/dismounter that is more archaic or the installer is not experienced, damage could be caused in a variety of ways. you can tell the rim was spinning or whatever was scratching it was rotating around the rim.
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05-14-2023, 12:29 PM	#3
cfm56d7b Lieutenant General 5886 Rep 10,256 Posts Drives: 2017 440i Gran Coupe & 2015 X5 Join Date: Nov 2012 Location: Orange County, CA iTrader: (2)	This is one of those unfortunate instances where repairing the wheel and moving on may be the best option. Without before and after photos the burden of proof will be very difficult to establish. That's the lesson learned: photos and more photos.
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05-15-2023, 04:37 PM	#4
jmanB45 Private First Class 144 Rep 124 Posts Drives: 2018 BMW 330iX Sedan Join Date: Apr 2022 Location: Toronto, ON iTrader: (0) Garage List 2018 BMW 330iX Sedan [0.00]	cfm56d7b, yes I came to the same conclusion. Lesson learned. Fortunately the damage is not visible unless you go looking for it
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