9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH17" Tire size upgrade
Leading reported evidence
Recommend 225
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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 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 would recommend the 225 on the fronts with 255/40s on the back with 17 inch wheels.
Leading evidence: 'Recommend 225' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend 225' (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.
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 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
The Porsche recommended width is 8" (on 18"s of course).
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 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.
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 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.
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 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
Here's a post from Loren at Renntech about what you can use width and offset-wise.
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
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: 20261027T182539Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I finally get to replace the #@$#$! Rosso's that came with my 996 (besides the horrible wear, I picked up a nail in one). The OEM sizes are 205/50-17 and 255/40-17. Is it worth the speedo offsets to go with something wider/lower on the 17" wheel, and if so, what would be practical?
Didn't quite see this dealt with in the last 9 months of posts, especially with the 17" wheels. I'd appreciate any insight so I can place my order with Tire Rack in the am.
thanks!
I put a 215/45 on my 17" fronts and with a GT-3 rear swaybar was able to improve the understeering I was experiencing with the stock tire and bar setup. The 215 is a decent fit(pushing things a bit) on the 7" front wheel, a 225 would be not so good.
225/45s fit perfectly on a Porsche 7Jx17 front wheel. Ran them for years. I would recommend the 225 on the fronts with 255/40s on the back with 17 inch wheels.
Ciao,
Adrian.
Now then, if I decided to go with 18's (8" and 10") and an OEM size (225/40 F and 265/35 R ), what would be the proper offset that I should be looking for on my wheels, in order to avoid any problems or spacers?
thanks!
Here's a post from Loren at Renntech about what you can use width and offset-wise.
New Wheels and Offset...
P.S. Happily defer to Adrian, but keep in mind the tire manufacturer's measuring width(the wheel width the tire is designed for) for 225's is typically 7.5". The Porsche recommended width is 8" (on 18"s of course). I'm sure the 225 on the 17 is quite practical, I just wouldn't call it ideal.
This is a source reference. Confirm exact model applicability in the original material.
