Rennlist

C2 Coupe Tire config

Add to repair workspace

New repair projectOpen repair workspace

Original source

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHC2 Coupe Tire config

Leading reported evidence

Run 245/40/17 front and it reduces understeer considerably

Performed · outcome unconfirmed

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 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
for some events I run a 245/40/17 front and it reduces understeer considerably.
Original post Read captured discussion
C2 Coupe Tire config

Frequently discussed work

Run 235 / 18

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 · Original poster
Currently running 235 / 18 on 8.5" wheel, front
Original post Read captured discussion
C2 Coupe Tire config

Read full discussion summary

Leading evidence: 'Run 245/40/17 front and it reduces understeer considerably' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run 235 / 18' (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 · 0 partial discussions

Compare 1 other evidence results

Run 235 / 18

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 · Original poster
Currently running 235 / 18 on 8.5" wheel, front
Original post Read captured discussion
C2 Coupe Tire config

Frequently discussed actions (2)

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 / 18

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 · Original poster
Currently running 235 / 18 on 8.5" wheel, front
Original post Read captured discussion
C2 Coupe Tire config

Run 245/40/17 front and it reduces understeer considerably

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
for some events I run a 245/40/17 front and it reduces understeer considerably.
Original post Read captured discussion
C2 Coupe Tire config

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.

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: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Currently running 235 / 18 on 8.5" wheel, front 295 / 18 on 10.5" wheel, rear The wider wheels and tires make the car feel remarkably planted Tires are on the menu this season, so should I go to 245 front and 295 rear? too much? Is there a sweet spot, say 235 front / 285 rear or 245 front / 285 rear? atm, I'm partial to going to 245 / 295 but curious as to others results

POST 2Original post

for some events I run a 245/40/17 front and it reduces understeer considerably. The factory 225 width is a little nicer for daily driving feel but I don't see any considerable change in rear traction playing around with the rear width- that inside unloads and open-diff lets it spin right up.

POST 3Original post

285/30/18 is ideal rear size as the lower profile maximizes torque mutiplication to maximize acceleration. 235/40/18 front matches it well.

This is a source reference. Confirm exact model applicability in the original material.