986Forum

Staggered wheels, 18s front 19s back? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Add to repair workspace

New repair projectOpen repair workspace

Original source

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHStaggered wheels, 18s front 19s back? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Replace handling balance, except

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
The 19's are a factory size, with the same section width, so they shouldn't change the handling balance, except to "respond" quicker due to less sidewall flex.
Original post Read captured discussion
Staggered wheels, 18s front 19s back? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Read full discussion summary

Leading evidence: 'Replace handling balance, except' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace handling balance, except' (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 · 6 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Test would be

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
A great test would be to mix & match a set of factory 18's & 19's , using the same brand tires with similar wear.
Original post Read captured discussion
Staggered wheels, 18s front 19s back? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use same brand tires

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
A great test would be to mix & match a set of factory 18's & 19's , using the same brand tires with similar wear.
Original post Read captured discussion
Staggered wheels, 18s front 19s back? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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.

Replace handling balance, except

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
The 19's are a factory size, with the same section width, so they shouldn't change the handling balance, except to "respond" quicker due to less sidewall flex.
Original post Read captured discussion
Staggered wheels, 18s front 19s back? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Test would be

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
A great test would be to mix & match a set of factory 18's & 19's , using the same brand tires with similar wear.
Original post Read captured discussion
Staggered wheels, 18s front 19s back? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use same brand tires

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
A great test would be to mix & match a set of factory 18's & 19's , using the same brand tires with similar wear.
Original post Read captured discussion
Staggered wheels, 18s front 19s back? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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.

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

986Forum: 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: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I'm interested how this set up looks on a boxster. Please post a pic. Also what would be a downfall? Is psm effected? Handling? Thanks

POST 2Original post

Tires will have thinner sidewall at the back which means they'll break traction sooner = oversteer. Not a good thing when our cars don't have a limited slip diff.

POST 3Original post

I am not Entirely certain in the case of a boxster but on a gt3 it will not work because the different rolling diameters upset the ABS.

POST 4Original post

I posed the same question in another thread. 265/40-18 tires and 265/35-19 tires have the exact same 26.3" diameter, so it's not a problem for ABS or PSM. The 19's are a factory size, with the same section width, so they shouldn't change the handling balance, except to "respond" quicker due to less sidewall flex. The reason I was considering it was concerns over wheel/tire damage with the very short sidewall of 19" fronts. The Corvette and Lotus, and I'm sure others, have staggered wheel diameters. As far as appearance, I would also like to see some pictures.

POST 5Original post

There may be some issue to the sidewall heights as far as flex and traction is concerned, however, if you do the math properly, you'll maintain the same rolling diameter, so ABS/ PSM is not affected.

POST 6Original post

A great test would be to mix & match a set of factory 18's & 19's , using the same brand tires with similar wear. I can't see it creating any issues, but the only way to know for sure is to try it and see.

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