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Tyre cagematch: Michelin PS2 N2 vs PS4S Aftermarket (generic) vs PS4S MO1 (Merc AMG)

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YOUR RESEARCHTyre cagematch: Michelin PS2 N2 vs PS4S Aftermarket (generic) vs PS4S MO1 (Merc AMG)

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Install with michelins came

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Unsuccessful attempts: 1
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with 19" wheels that were fitted with Michelins came with that setup.
Original post Read captured discussion
Tyre cagematch: Michelin PS2 N2 vs PS4S Aftermarket (generic) vs PS4S MO1 (Merc AMG)

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Leading evidence: 'Install with michelins came' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install with michelins came' (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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Test sportcup2, not ps4s

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Not sure about MO rating, my tire supplier discouraged to use them instead of N-spec, but he tested SportCup2, not PS4S.
Original post Read captured discussion
Tyre cagematch: Michelin PS2 N2 vs PS4S Aftermarket (generic) vs PS4S MO1 (Merc AMG)

Use ps4s

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Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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

Performed · outcome unconfirmed
Since then I only used PS4S on that car.
Original post Read captured discussion
Tyre cagematch: Michelin PS2 N2 vs PS4S Aftermarket (generic) vs PS4S MO1 (Merc AMG)

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.

Install with michelins came

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
with 19" wheels that were fitted with Michelins came with that setup.
Original post Read captured discussion
Tyre cagematch: Michelin PS2 N2 vs PS4S Aftermarket (generic) vs PS4S MO1 (Merc AMG)

Test sportcup2, not ps4s

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
Not sure about MO rating, my tire supplier discouraged to use them instead of N-spec, but he tested SportCup2, not PS4S.
Original post Read captured discussion
Tyre cagematch: Michelin PS2 N2 vs PS4S Aftermarket (generic) vs PS4S MO1 (Merc AMG)

Use ps4s

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
Since then I only used PS4S on that car.
Original post Read captured discussion
Tyre cagematch: Michelin PS2 N2 vs PS4S Aftermarket (generic) vs PS4S MO1 (Merc AMG)

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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.

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

Planet-9: 1 discussions

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Generation: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hi all, This is related to https://www.planet-9.com/threads/wh...uld-i-use-for-cayman-r-spyder-lightweight-19-rims-8-5j-10j.255678/#post-2228429 and https://www.planet-9.com/threads/pilot-sport-ps2-n-rating.49258/#post-483730 I'm after new tyres. I current have PS2 N2 and love them, but I'm curious about the P4S. However, they're not made with an N-rating in 19inch size, because the contemporaneous model is the 718 in 20+ inch only. It looks like I could locally find the PS4S in Aftermarket Generic form, or in MO1 Mercedes AMG form... What's the best choice between the 3 options? My gut is that the PS2 N2 is a known quantity and unlikely to be wrong, but the PS4S has about 10 years more development, so ought to be better even in the Aftermarket form. Furthermore is it too silly to assume / hope that Merc AMG would probably optimize the same things as Porsche would, and thus the MO1 is close enough to the N rating? Many thanks, Jon

POST 2Original post

Can comment from track perspective. I switched from PS2 N2 to PS4S generic on my cayman 987.2 (2.9) in 2022 and my top lap times improved significantly (46.47->46.09 at Vantaa Circuit (FI), 1:35.72->1:34.56 at Ahvenisto (FI)). Since then I only used PS4S on that car. Exact tire specs, as ordered from the shop: Michelin Pilot Sport 4S 235/35 ZR19 (91Y) XL Michelin Pilot Sport 4S 265/35 ZR19 (98Y) XL Not sure about MO rating, my tire supplier discouraged to use them instead of N-spec, but he tested SportCup2, not PS4S.

POST 3Original post

That's very helpful - thanks @kirillart ! Thinking about it, I speculate the Merc AMG MO1's might not be appropriate since most (all?) their cars are front-engined and generally heavier... I think I'll head for PS4S in generic form in that case. Now I have to figure out which size to get for 8.5J / 10J (back to scouring https://www.planet-9.com/threads/wh...tweight-19-rims-8-5j-10j.255678/#post-2228429 and https://www.planet-9.com/threads/pilot-sport-ps2-n-rating.49258/#post-483730 )

POST 4Original post

I'm not sure there ever was an N-spec PS4S in the 265/40-19 size; my 981 came equipped with N-spec PS4Ss on the front (235/40-19) and M01-spec PS4Ss (265/40-19) on the back. A tech I spoke with about this said that all Caymans with 19" wheels that were fitted with Michelins came with that setup. I imagine that if Porsche equipped cars this way, they thought the M01s were good enough.

POST 5Original post

Gotcha - thanks! I wish they'd publish this stuff, but then again, that's what this great forum is for

POST 6Original post

PS2 should be forgotten, its age old technology now (it was released in 2007). As for the PS4/PS4S... for street use you will not need N- rating at all (unless some sort of insurance or warranty requires it). Generally, N rated tyres have a bit firmer sidewalls - and sometimes a bit different compound - which make them turn more confidently on track BUT also more uncomfortable on streets.

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