Tire size question
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This is a discussion on Tire size question within the Suspension & Wheels forums, part of the Tech & Modifying & General Repairs category; The stock 2011 wrx tires are 235/45r17. Is it ok to use 235/50r17 tires instead? What are the negatives of ...

  1. #1
    Registered User Andy21785's Avatar
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    Tire size question

    The stock 2011 wrx tires are 235/45r17. Is it ok to use 235/50r17 tires instead? What are the negatives of going up in size by just a little? Thank you for the help. I'm just tire shopping and looking for options.

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    Registered User NitroNate's Avatar
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    no there is nothing wrong with doing that. it's really just a look/ride thing. the ride quality of a larger sidewall will be a little softer, but the handling will suffer a little. i took mine from 35 to 45 because the ride quality was terrible. handling, meh, didn't really notice the difference much because i don't push it that hard in corners.
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    Registered User Andy21785's Avatar
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    Thanks for the input. I'll keep that in mind. I don't track my car or anything. Just some spirted driving and a little bit of twisties now and then. Now if i switch over from 235/45 to 215/50, would that be a better match? speedo readings would be more on point, but will that decrease in contact width affect the ride and suspension that much?

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    Pro Manscaper Mikie13's Avatar
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    I wouldn't bother...increasing the sidewall height without the width could cause your speedo to become inaccurate to a degree. Plus, you'll lose handling even during that spirited driving in the twisties.

    And don't bother dropping to a 215...why have less contact patch and more stretch?

    I don't see what you're trying to accomplish here. There are a ton of tire options at for a 17x8 wheel.
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    Registered User Andy21785's Avatar
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    I was looking at the Cooper cs4 and it doesn't come in a 235/45 size so I was wondering what would be the downside of replacing the current stock tires with a different size. Maybe I'll just get the Cooper Zeon RS3-A, they do have them in my size...hmmmm

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    I am doing a winter wheel and tire package from tire rack and there is a continental winter extreme for $118 with great reviews, much cheaper than the michelin ice and bridgestone blizzack. Only problem with continental is that this tire only comes in a 205 50 17 i stead of the original 235 45 17. If i u derstand right, a 205 50 actually has a lower profile than a 235 45.. is that right? Also, would this alternate size be ok for winter tires? Im not sure but the price is good

  8. #7
    Registered User wreckingball man's Avatar
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    If its stretches enough it could have a lower profile. But a 50 sidewall is larger than 45.

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    I agree but i just thought stretching a 205 on a 7.5 or 8 inch wheel would produce a slight lower profile than the stock..

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