Planet-9

Help With Tire Sizes

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3 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHHelp With Tire Sizes

Reported or suspected cause

car will be seriously over-tired in the back

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that suspect a cause: 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.

Suspected cause
I can't speak to how well the fits/diameters are, but I suspect the car will be seriously over-tired in the back.
Original post Read captured discussion
Help With Tire Sizes

Frequently discussed work

Run 235/35/19 front and 285/30/19 rear

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
Previous owner left me with 19x11 rear wheels, running 235/35/19 front and 285/30/19 rear.
Original post Read captured discussion
Help With Tire Sizes

Read full discussion summary

Leading evidence: 'car will be seriously over-tired in the back' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'car will be seriously over-tired in the back' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Run 235/35/19 front and 285/30/19 rear' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 3 captured posts examined · 1 partial discussions

Compare 3 other evidence results

Run 235/35/19 front and 285/30/19 rear

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
Previous owner left me with 19x11 rear wheels, running 235/35/19 front and 285/30/19 rear.
Original post Read captured discussion
Help With Tire Sizes

Set ups and could really

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
I am deciding between the following set-ups and could really use some help.
Original post Read captured discussion
Help With Tire Sizes

Use some help

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
I am deciding between the following set-ups and could really use some help.
Original post Read captured discussion
Help With Tire Sizes

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Run 235/35/19 front and 285/30/19 rear

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
Previous owner left me with 19x11 rear wheels, running 235/35/19 front and 285/30/19 rear.
Original post Read captured discussion
Help With Tire Sizes

Set ups and could really

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
I am deciding between the following set-ups and could really use some help.
Original post Read captured discussion
Help With Tire Sizes

Use some help

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
I am deciding between the following set-ups and could really use some help.
Original post Read captured discussion
Help With Tire Sizes

Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

car will be seriously over-tired in the back

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect a cause: 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.

Suspected cause
I can't speak to how well the fits/diameters are, but I suspect the car will be seriously over-tired in the back.
Original post Read captured discussion
Help With Tire Sizes

Coverage and how to read this overview

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.

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

Planet-9: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T190023Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Previous owner left me with 19x11 rear wheels, running 235/35/19 front and 285/30/19 rear. The rears were stretched on leaving a .5" lip of wheel on each side -- no good. I don't want to spend $3k on wheels so I'm having new tires put on. I am deciding between the following set-ups and could really use some help. Option 1 245/35/19 and 295/35/19 with a delta in circumference between the F/R of 5.04% Dia (inch) Cir (inch) 245/35 25.8 81.012 295/35 27.1 85.094 Delta 1.3 4.082 % from OEM 63% F/R % Delta 5.04% Option 2: 245/35/19 and 295/ 30 /19 with a delta in circumference between F/R of 1.96% Dia Cir 235/35 25.5 80.07 295/30 26 81.64 Delta 0.5 1.57 % from OEM -38% F/R % Delta 1.96% Note, here are the factory specs: 2.5" delta in CIRCUMFERENCE between F/R and 0.9" delta in DIAMETER between F/R. What should I do: go with the 295/30/19 in the rear, or bump up the sidewall to a 35? The car is otherwise stock on the suspension, alignment, etc.

POST 2Original post

I can't speak to how well the fits/diameters are, but I suspect the car will be seriously over-tired in the back. What effects will that have? It will probably make it slower (larger heavier tire, more inertia). Dunno on handling. How about clearance to the struts and the fender lip? FWIW - if you keep an eye on the marketplace here, there are often wheel-sets being sold for under $1k. That would put you back to stock sizes, then perhaps the wheels on your car now might have value to someone else, perhaps someone making a track car.. Also - when you have a chance, please visit: New Member Introductions and let us know a bit about you and your car.. and photos are ALWAYS appreciated! WELCOME to Planet-9 The Friendly Porsche forum!

POST 3Original post

Nothing wrong with 11’s out the back.. I’d get a 295-30… what is the rear offset? Plans for suspension/lowering?

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