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Tire size

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9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHTire size

Leading reported evidence

Use 997 spec tires of 235/40 18 and 265/40 18

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Performed · outcome unconfirmed · Original poster
Can I use the 997 spec tires of 235/40 18 and 265/40 18?
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Tire size

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Use ) not sure if you'd want

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Suggestion
* 235 upfront would be okay (same size as the MK2 GT3 uses) not sure if you'd want to go narrower (265 vs 285) in the rear though?
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Tire size

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Leading evidence: 'Use 997 spec tires of 235/40 18 and 265/40 18' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use ) not sure if you'd want' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Use ) not sure if you'd want

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Suggestion
* 235 upfront would be okay (same size as the MK2 GT3 uses) not sure if you'd want to go narrower (265 vs 285) in the rear though?
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Tire size

Frequently discussed actions (2)

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Use ) not sure if you'd want

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion
* 235 upfront would be okay (same size as the MK2 GT3 uses) not sure if you'd want to go narrower (265 vs 285) in the rear though?
Original post Read captured discussion
Tire size

Use 997 spec tires of 235/40 18 and 265/40 18

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
Can I use the 997 spec tires of 235/40 18 and 265/40 18?
Original post Read captured discussion
Tire size

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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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Generation: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My OEM tires are 225/40 18 and 285/30 18. Can I use the 997 spec tires of 235/40 18 and 265/40 18? Cheaper and more sidewalk in rear.

POST 2Original post

Is it a rear wheel drive or four wheel drive?

POST 3 / ORIGINAL POSTEROriginal post

Rear wheel drive. Carrera 2.

POST 4Original post

I * think * 235 upfront would be okay (same size as the MK2 GT3 uses) not sure if you'd want to go narrower (265 vs 285) in the rear though? Also depends on what rims you have

POST 5Original post

I am definitely partial to 285 or 295 in the rear. both of which fit in a C2 with proper offset.

POST 6Original post

Front is no problem. Rear may fit, but will have a 6% larger rolling radius, which will make your speedo inaccurate. You'd need a 265/35, but then you'd get no side wall increase vs a 285/30.

POST 7 / ORIGINAL POSTEROriginal post

Thanks all. Very helpful. I�ll stay with the OEM sizes.

POST 8Original post

Late to the party, but those are the sizes on my 99 C2 (235/40/18 and 265/40/18), albeit on a set of Cayman wheels. They will fit.

POST 9 / ORIGINAL POSTEROriginal post

Good to know, thanks Ovaltine. Wheels should be same width. I'll check.

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