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      12-17-2012, 04:26 PM   #1
kamek
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Help: OK to run same tire sizes with mismatched tire brands or models?

I know our XI systems are sensitive to rolling diameter differences, etc. so I was wondering if running the same tire sizes but in different brands or models would be OK. For example, running three Continental 225/45/17s and one Bridgestone 225/45/17.

I ask because I currently have four 225/45/17 Continental DWS non-RFT tires on my car and would like to throw an old wheel with a 225/45/17 Continental ContiProContact RFT in my trunk for long trips as a spare. In the event of a flat, I could throw on the spare RFT so I could get to a tire shop, but I'd have mismatched tires on the car.

Does anyone know if this would be OK to do?
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      12-18-2012, 12:04 AM   #2
icyhot e92
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Diameter wise they are all 25". The difference will be in the tread depth but it is so small of a difference. If for emergency only and all the other tire pressures are ok then it shouldn't be a problem. Handling is a different story since the stiffness is different.
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      12-18-2012, 01:10 AM   #3
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Quote:
Originally Posted by icyhot e92 View Post
Diameter wise they are all 25". The difference will be in the tread depth but it is so small of a difference. If for emergency only and all the other tire pressures are ok then it shouldn't be a problem. Handling is a different story since the stiffness is different.
Thank you! It would only be for emergency use until I could make my way to a tire shop for repair or replacement.
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